mainline/platform/sdk/include_gen/external/perfetto/perfetto_protos_perfetto_trace_track_event_zero_gen_headers/gen/external/perfetto/protos/perfetto/trace/track_event/chrome_compositor_scheduler_state.pbzero.h

// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.

#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_COMPOSITOR_SCHEDULER_STATE_PROTO_H_
#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_COMPOSITOR_SCHEDULER_STATE_PROTO_H_

#include <stddef.h>
#include <stdint.h>

#include "perfetto/protozero/field_writer.h"
#include "perfetto/protozero/message.h"
#include "perfetto/protozero/packed_repeated_fields.h"
#include "perfetto/protozero/proto_decoder.h"
#include "perfetto/protozero/proto_utils.h"

namespace perfetto {
namespace protos {
namespace pbzero {

class BeginFrameArgs;
class BeginFrameObserverState;
class BeginFrameSourceState;
class BeginImplFrameArgs;
class BeginImplFrameArgs_TimestampsInUs;
class ChromeCompositorStateMachine;
class ChromeCompositorStateMachine_MajorState;
class ChromeCompositorStateMachine_MinorState;
class CompositorTimingHistory;
class SourceLocation;
enum BeginFrameArgs_BeginFrameArgsType : int32_t;
enum BeginImplFrameArgs_State : int32_t;
enum ChromeCompositorSchedulerAction : int32_t;
enum ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode : int32_t;
enum ChromeCompositorStateMachine_MajorState_BeginImplFrameState : int32_t;
enum ChromeCompositorStateMachine_MajorState_BeginMainFrameState : int32_t;
enum ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState : int32_t;
enum ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState : int32_t;
enum ChromeCompositorStateMachine_MinorState_ScrollHandlerState : int32_t;
enum ChromeCompositorStateMachine_MinorState_TreePriority : int32_t;

enum ChromeCompositorSchedulerAction : int32_t {
  CC_SCHEDULER_ACTION_UNSPECIFIED = 0,
  CC_SCHEDULER_ACTION_NONE = 1,
  CC_SCHEDULER_ACTION_SEND_BEGIN_MAIN_FRAME = 2,
  CC_SCHEDULER_ACTION_COMMIT = 3,
  CC_SCHEDULER_ACTION_ACTIVATE_SYNC_TREE = 4,
  CC_SCHEDULER_ACTION_DRAW_IF_POSSIBLE = 5,
  CC_SCHEDULER_ACTION_DRAW_FORCED = 6,
  CC_SCHEDULER_ACTION_DRAW_ABORT = 7,
  CC_SCHEDULER_ACTION_BEGIN_LAYER_TREE_FRAME_SINK_CREATION = 8,
  CC_SCHEDULER_ACTION_PREPARE_TILES = 9,
  CC_SCHEDULER_ACTION_INVALIDATE_LAYER_TREE_FRAME_SINK = 10,
  CC_SCHEDULER_ACTION_PERFORM_IMPL_SIDE_INVALIDATION = 11,
  CC_SCHEDULER_ACTION_NOTIFY_BEGIN_MAIN_FRAME_NOT_EXPECTED_UNTIL = 12,
  CC_SCHEDULER_ACTION_NOTIFY_BEGIN_MAIN_FRAME_NOT_EXPECTED_SOON = 13,
};

const ChromeCompositorSchedulerAction ChromeCompositorSchedulerAction_MIN = CC_SCHEDULER_ACTION_UNSPECIFIED;
const ChromeCompositorSchedulerAction ChromeCompositorSchedulerAction_MAX = CC_SCHEDULER_ACTION_NOTIFY_BEGIN_MAIN_FRAME_NOT_EXPECTED_SOON;

enum BeginImplFrameArgs_State : int32_t {
  BeginImplFrameArgs_State_BEGIN_FRAME_FINISHED = 0,
  BeginImplFrameArgs_State_BEGIN_FRAME_USING = 1,
};

const BeginImplFrameArgs_State BeginImplFrameArgs_State_MIN = BeginImplFrameArgs_State_BEGIN_FRAME_FINISHED;
const BeginImplFrameArgs_State BeginImplFrameArgs_State_MAX = BeginImplFrameArgs_State_BEGIN_FRAME_USING;

enum BeginFrameArgs_BeginFrameArgsType : int32_t {
  BeginFrameArgs_BeginFrameArgsType_BEGIN_FRAME_ARGS_TYPE_UNSPECIFIED = 0,
  BeginFrameArgs_BeginFrameArgsType_BEGIN_FRAME_ARGS_TYPE_INVALID = 1,
  BeginFrameArgs_BeginFrameArgsType_BEGIN_FRAME_ARGS_TYPE_NORMAL = 2,
  BeginFrameArgs_BeginFrameArgsType_BEGIN_FRAME_ARGS_TYPE_MISSED = 3,
};

const BeginFrameArgs_BeginFrameArgsType BeginFrameArgs_BeginFrameArgsType_MIN = BeginFrameArgs_BeginFrameArgsType_BEGIN_FRAME_ARGS_TYPE_UNSPECIFIED;
const BeginFrameArgs_BeginFrameArgsType BeginFrameArgs_BeginFrameArgsType_MAX = BeginFrameArgs_BeginFrameArgsType_BEGIN_FRAME_ARGS_TYPE_MISSED;

enum ChromeCompositorStateMachine_MinorState_TreePriority : int32_t {
  ChromeCompositorStateMachine_MinorState_TreePriority_TREE_PRIORITY_UNSPECIFIED = 0,
  ChromeCompositorStateMachine_MinorState_TreePriority_TREE_PRIORITY_SAME_PRIORITY_FOR_BOTH_TREES = 1,
  ChromeCompositorStateMachine_MinorState_TreePriority_TREE_PRIORITY_SMOOTHNESS_TAKES_PRIORITY = 2,
  ChromeCompositorStateMachine_MinorState_TreePriority_TREE_PRIORITY_NEW_CONTENT_TAKES_PRIORITY = 3,
};

const ChromeCompositorStateMachine_MinorState_TreePriority ChromeCompositorStateMachine_MinorState_TreePriority_MIN = ChromeCompositorStateMachine_MinorState_TreePriority_TREE_PRIORITY_UNSPECIFIED;
const ChromeCompositorStateMachine_MinorState_TreePriority ChromeCompositorStateMachine_MinorState_TreePriority_MAX = ChromeCompositorStateMachine_MinorState_TreePriority_TREE_PRIORITY_NEW_CONTENT_TAKES_PRIORITY;

enum ChromeCompositorStateMachine_MinorState_ScrollHandlerState : int32_t {
  ChromeCompositorStateMachine_MinorState_ScrollHandlerState_SCROLL_HANDLER_UNSPECIFIED = 0,
  ChromeCompositorStateMachine_MinorState_ScrollHandlerState_SCROLL_AFFECTS_SCROLL_HANDLER = 1,
  ChromeCompositorStateMachine_MinorState_ScrollHandlerState_SCROLL_DOES_NOT_AFFECT_SCROLL_HANDLER = 2,
};

const ChromeCompositorStateMachine_MinorState_ScrollHandlerState ChromeCompositorStateMachine_MinorState_ScrollHandlerState_MIN = ChromeCompositorStateMachine_MinorState_ScrollHandlerState_SCROLL_HANDLER_UNSPECIFIED;
const ChromeCompositorStateMachine_MinorState_ScrollHandlerState ChromeCompositorStateMachine_MinorState_ScrollHandlerState_MAX = ChromeCompositorStateMachine_MinorState_ScrollHandlerState_SCROLL_DOES_NOT_AFFECT_SCROLL_HANDLER;

enum ChromeCompositorStateMachine_MajorState_BeginImplFrameState : int32_t {
  ChromeCompositorStateMachine_MajorState_BeginImplFrameState_BEGIN_IMPL_FRAME_UNSPECIFIED = 0,
  ChromeCompositorStateMachine_MajorState_BeginImplFrameState_BEGIN_IMPL_FRAME_IDLE = 1,
  ChromeCompositorStateMachine_MajorState_BeginImplFrameState_BEGIN_IMPL_FRAME_INSIDE_BEGIN_FRAME = 2,
  ChromeCompositorStateMachine_MajorState_BeginImplFrameState_BEGIN_IMPL_FRAME_INSIDE_DEADLINE = 3,
};

const ChromeCompositorStateMachine_MajorState_BeginImplFrameState ChromeCompositorStateMachine_MajorState_BeginImplFrameState_MIN = ChromeCompositorStateMachine_MajorState_BeginImplFrameState_BEGIN_IMPL_FRAME_UNSPECIFIED;
const ChromeCompositorStateMachine_MajorState_BeginImplFrameState ChromeCompositorStateMachine_MajorState_BeginImplFrameState_MAX = ChromeCompositorStateMachine_MajorState_BeginImplFrameState_BEGIN_IMPL_FRAME_INSIDE_DEADLINE;

enum ChromeCompositorStateMachine_MajorState_BeginMainFrameState : int32_t {
  ChromeCompositorStateMachine_MajorState_BeginMainFrameState_BEGIN_MAIN_FRAME_UNSPECIFIED = 0,
  ChromeCompositorStateMachine_MajorState_BeginMainFrameState_BEGIN_MAIN_FRAME_IDLE = 1,
  ChromeCompositorStateMachine_MajorState_BeginMainFrameState_BEGIN_MAIN_FRAME_SENT = 2,
  ChromeCompositorStateMachine_MajorState_BeginMainFrameState_BEGIN_MAIN_FRAME_READY_TO_COMMIT = 3,
};

const ChromeCompositorStateMachine_MajorState_BeginMainFrameState ChromeCompositorStateMachine_MajorState_BeginMainFrameState_MIN = ChromeCompositorStateMachine_MajorState_BeginMainFrameState_BEGIN_MAIN_FRAME_UNSPECIFIED;
const ChromeCompositorStateMachine_MajorState_BeginMainFrameState ChromeCompositorStateMachine_MajorState_BeginMainFrameState_MAX = ChromeCompositorStateMachine_MajorState_BeginMainFrameState_BEGIN_MAIN_FRAME_READY_TO_COMMIT;

enum ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState : int32_t {
  ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_UNSPECIFIED = 0,
  ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_NONE = 1,
  ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_ACTIVE = 2,
  ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_CREATING = 3,
  ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_WAITING_FOR_FIRST_COMMIT = 4,
  ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_WAITING_FOR_FIRST_ACTIVATION = 5,
};

const ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_MIN = ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_UNSPECIFIED;
const ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_MAX = ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_WAITING_FOR_FIRST_ACTIVATION;

enum ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState : int32_t {
  ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState_FORCED_REDRAW_UNSPECIFIED = 0,
  ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState_FORCED_REDRAW_IDLE = 1,
  ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState_FORCED_REDRAW_WAITING_FOR_COMMIT = 2,
  ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState_FORCED_REDRAW_WAITING_FOR_ACTIVATION = 3,
  ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState_FORCED_REDRAW_WAITING_FOR_DRAW = 4,
};

const ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState_MIN = ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState_FORCED_REDRAW_UNSPECIFIED;
const ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState_MAX = ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState_FORCED_REDRAW_WAITING_FOR_DRAW;

enum ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode : int32_t {
  ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_UNSPECIFIED = 0,
  ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_NONE = 1,
  ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_IMMEDIATE = 2,
  ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_REGULAR = 3,
  ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_LATE = 4,
  ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_BLOCKED = 5,
};

const ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_MIN = ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_UNSPECIFIED;
const ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_MAX = ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_BLOCKED;

class CompositorTimingHistory_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/7, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
 public:
  CompositorTimingHistory_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
  explicit CompositorTimingHistory_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
  explicit CompositorTimingHistory_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
  bool has_begin_main_frame_queue_critical_estimate_delta_us() const { return at<1>().valid(); }
  int64_t begin_main_frame_queue_critical_estimate_delta_us() const { return at<1>().as_int64(); }
  bool has_begin_main_frame_queue_not_critical_estimate_delta_us() const { return at<2>().valid(); }
  int64_t begin_main_frame_queue_not_critical_estimate_delta_us() const { return at<2>().as_int64(); }
  bool has_begin_main_frame_start_to_ready_to_commit_estimate_delta_us() const { return at<3>().valid(); }
  int64_t begin_main_frame_start_to_ready_to_commit_estimate_delta_us() const { return at<3>().as_int64(); }
  bool has_commit_to_ready_to_activate_estimate_delta_us() const { return at<4>().valid(); }
  int64_t commit_to_ready_to_activate_estimate_delta_us() const { return at<4>().as_int64(); }
  bool has_prepare_tiles_estimate_delta_us() const { return at<5>().valid(); }
  int64_t prepare_tiles_estimate_delta_us() const { return at<5>().as_int64(); }
  bool has_activate_estimate_delta_us() const { return at<6>().valid(); }
  int64_t activate_estimate_delta_us() const { return at<6>().as_int64(); }
  bool has_draw_estimate_delta_us() const { return at<7>().valid(); }
  int64_t draw_estimate_delta_us() const { return at<7>().as_int64(); }
};

class CompositorTimingHistory : public ::protozero::Message {
 public:
  using Decoder = CompositorTimingHistory_Decoder;
  enum : int32_t {
    kBeginMainFrameQueueCriticalEstimateDeltaUsFieldNumber = 1,
    kBeginMainFrameQueueNotCriticalEstimateDeltaUsFieldNumber = 2,
    kBeginMainFrameStartToReadyToCommitEstimateDeltaUsFieldNumber = 3,
    kCommitToReadyToActivateEstimateDeltaUsFieldNumber = 4,
    kPrepareTilesEstimateDeltaUsFieldNumber = 5,
    kActivateEstimateDeltaUsFieldNumber = 6,
    kDrawEstimateDeltaUsFieldNumber = 7,
  };

  using FieldMetadata_BeginMainFrameQueueCriticalEstimateDeltaUs =
    ::protozero::proto_utils::FieldMetadata<
      1,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kInt64,
      int64_t,
      CompositorTimingHistory>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_BeginMainFrameQueueCriticalEstimateDeltaUs kBeginMainFrameQueueCriticalEstimateDeltaUs() { return {}; }
  void set_begin_main_frame_queue_critical_estimate_delta_us(int64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_BeginMainFrameQueueCriticalEstimateDeltaUs::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kInt64>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_BeginMainFrameQueueNotCriticalEstimateDeltaUs =
    ::protozero::proto_utils::FieldMetadata<
      2,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kInt64,
      int64_t,
      CompositorTimingHistory>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_BeginMainFrameQueueNotCriticalEstimateDeltaUs kBeginMainFrameQueueNotCriticalEstimateDeltaUs() { return {}; }
  void set_begin_main_frame_queue_not_critical_estimate_delta_us(int64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_BeginMainFrameQueueNotCriticalEstimateDeltaUs::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kInt64>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_BeginMainFrameStartToReadyToCommitEstimateDeltaUs =
    ::protozero::proto_utils::FieldMetadata<
      3,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kInt64,
      int64_t,
      CompositorTimingHistory>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_BeginMainFrameStartToReadyToCommitEstimateDeltaUs kBeginMainFrameStartToReadyToCommitEstimateDeltaUs() { return {}; }
  void set_begin_main_frame_start_to_ready_to_commit_estimate_delta_us(int64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_BeginMainFrameStartToReadyToCommitEstimateDeltaUs::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kInt64>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_CommitToReadyToActivateEstimateDeltaUs =
    ::protozero::proto_utils::FieldMetadata<
      4,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kInt64,
      int64_t,
      CompositorTimingHistory>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_CommitToReadyToActivateEstimateDeltaUs kCommitToReadyToActivateEstimateDeltaUs() { return {}; }
  void set_commit_to_ready_to_activate_estimate_delta_us(int64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_CommitToReadyToActivateEstimateDeltaUs::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kInt64>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_PrepareTilesEstimateDeltaUs =
    ::protozero::proto_utils::FieldMetadata<
      5,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kInt64,
      int64_t,
      CompositorTimingHistory>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_PrepareTilesEstimateDeltaUs kPrepareTilesEstimateDeltaUs() { return {}; }
  void set_prepare_tiles_estimate_delta_us(int64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_PrepareTilesEstimateDeltaUs::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kInt64>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_ActivateEstimateDeltaUs =
    ::protozero::proto_utils::FieldMetadata<
      6,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kInt64,
      int64_t,
      CompositorTimingHistory>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_ActivateEstimateDeltaUs kActivateEstimateDeltaUs() { return {}; }
  void set_activate_estimate_delta_us(int64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_ActivateEstimateDeltaUs::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kInt64>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_DrawEstimateDeltaUs =
    ::protozero::proto_utils::FieldMetadata<
      7,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kInt64,
      int64_t,
      CompositorTimingHistory>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_DrawEstimateDeltaUs kDrawEstimateDeltaUs() { return {}; }
  void set_draw_estimate_delta_us(int64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_DrawEstimateDeltaUs::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kInt64>
        ::Append(*this, field_id, value);
  }
};

class BeginFrameSourceState_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
 public:
  BeginFrameSourceState_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
  explicit BeginFrameSourceState_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
  explicit BeginFrameSourceState_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
  bool has_source_id() const { return at<1>().valid(); }
  uint32_t source_id() const { return at<1>().as_uint32(); }
  bool has_paused() const { return at<2>().valid(); }
  bool paused() const { return at<2>().as_bool(); }
  bool has_num_observers() const { return at<3>().valid(); }
  uint32_t num_observers() const { return at<3>().as_uint32(); }
  bool has_last_begin_frame_args() const { return at<4>().valid(); }
  ::protozero::ConstBytes last_begin_frame_args() const { return at<4>().as_bytes(); }
};

class BeginFrameSourceState : public ::protozero::Message {
 public:
  using Decoder = BeginFrameSourceState_Decoder;
  enum : int32_t {
    kSourceIdFieldNumber = 1,
    kPausedFieldNumber = 2,
    kNumObserversFieldNumber = 3,
    kLastBeginFrameArgsFieldNumber = 4,
  };

  using FieldMetadata_SourceId =
    ::protozero::proto_utils::FieldMetadata<
      1,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kUint32,
      uint32_t,
      BeginFrameSourceState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_SourceId kSourceId() { return {}; }
  void set_source_id(uint32_t value) {
    static constexpr uint32_t field_id = FieldMetadata_SourceId::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kUint32>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_Paused =
    ::protozero::proto_utils::FieldMetadata<
      2,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kBool,
      bool,
      BeginFrameSourceState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_Paused kPaused() { return {}; }
  void set_paused(bool value) {
    static constexpr uint32_t field_id = FieldMetadata_Paused::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kBool>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_NumObservers =
    ::protozero::proto_utils::FieldMetadata<
      3,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kUint32,
      uint32_t,
      BeginFrameSourceState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_NumObservers kNumObservers() { return {}; }
  void set_num_observers(uint32_t value) {
    static constexpr uint32_t field_id = FieldMetadata_NumObservers::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kUint32>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_LastBeginFrameArgs =
    ::protozero::proto_utils::FieldMetadata<
      4,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kMessage,
      BeginFrameArgs,
      BeginFrameSourceState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_LastBeginFrameArgs kLastBeginFrameArgs() { return {}; }
  template <typename T = BeginFrameArgs> T* set_last_begin_frame_args() {
    return BeginNestedMessage<T>(4);
  }

};

class BeginFrameObserverState_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
 public:
  BeginFrameObserverState_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
  explicit BeginFrameObserverState_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
  explicit BeginFrameObserverState_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
  bool has_dropped_begin_frame_args() const { return at<1>().valid(); }
  int64_t dropped_begin_frame_args() const { return at<1>().as_int64(); }
  bool has_last_begin_frame_args() const { return at<2>().valid(); }
  ::protozero::ConstBytes last_begin_frame_args() const { return at<2>().as_bytes(); }
};

class BeginFrameObserverState : public ::protozero::Message {
 public:
  using Decoder = BeginFrameObserverState_Decoder;
  enum : int32_t {
    kDroppedBeginFrameArgsFieldNumber = 1,
    kLastBeginFrameArgsFieldNumber = 2,
  };

  using FieldMetadata_DroppedBeginFrameArgs =
    ::protozero::proto_utils::FieldMetadata<
      1,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kInt64,
      int64_t,
      BeginFrameObserverState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_DroppedBeginFrameArgs kDroppedBeginFrameArgs() { return {}; }
  void set_dropped_begin_frame_args(int64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_DroppedBeginFrameArgs::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kInt64>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_LastBeginFrameArgs =
    ::protozero::proto_utils::FieldMetadata<
      2,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kMessage,
      BeginFrameArgs,
      BeginFrameObserverState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_LastBeginFrameArgs kLastBeginFrameArgs() { return {}; }
  template <typename T = BeginFrameArgs> T* set_last_begin_frame_args() {
    return BeginNestedMessage<T>(2);
  }

};

class BeginImplFrameArgs_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/6, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
 public:
  BeginImplFrameArgs_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
  explicit BeginImplFrameArgs_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
  explicit BeginImplFrameArgs_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
  bool has_updated_at_us() const { return at<1>().valid(); }
  int64_t updated_at_us() const { return at<1>().as_int64(); }
  bool has_finished_at_us() const { return at<2>().valid(); }
  int64_t finished_at_us() const { return at<2>().as_int64(); }
  bool has_state() const { return at<3>().valid(); }
  int32_t state() const { return at<3>().as_int32(); }
  bool has_current_args() const { return at<4>().valid(); }
  ::protozero::ConstBytes current_args() const { return at<4>().as_bytes(); }
  bool has_last_args() const { return at<5>().valid(); }
  ::protozero::ConstBytes last_args() const { return at<5>().as_bytes(); }
  bool has_timestamps_in_us() const { return at<6>().valid(); }
  ::protozero::ConstBytes timestamps_in_us() const { return at<6>().as_bytes(); }
};

class BeginImplFrameArgs : public ::protozero::Message {
 public:
  using Decoder = BeginImplFrameArgs_Decoder;
  enum : int32_t {
    kUpdatedAtUsFieldNumber = 1,
    kFinishedAtUsFieldNumber = 2,
    kStateFieldNumber = 3,
    kCurrentArgsFieldNumber = 4,
    kLastArgsFieldNumber = 5,
    kTimestampsInUsFieldNumber = 6,
  };
  using TimestampsInUs = ::perfetto::protos::pbzero::BeginImplFrameArgs_TimestampsInUs;
  using State = ::perfetto::protos::pbzero::BeginImplFrameArgs_State;
  static const State BEGIN_FRAME_FINISHED = BeginImplFrameArgs_State_BEGIN_FRAME_FINISHED;
  static const State BEGIN_FRAME_USING = BeginImplFrameArgs_State_BEGIN_FRAME_USING;

  using FieldMetadata_UpdatedAtUs =
    ::protozero::proto_utils::FieldMetadata<
      1,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kInt64,
      int64_t,
      BeginImplFrameArgs>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_UpdatedAtUs kUpdatedAtUs() { return {}; }
  void set_updated_at_us(int64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_UpdatedAtUs::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kInt64>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_FinishedAtUs =
    ::protozero::proto_utils::FieldMetadata<
      2,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kInt64,
      int64_t,
      BeginImplFrameArgs>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_FinishedAtUs kFinishedAtUs() { return {}; }
  void set_finished_at_us(int64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_FinishedAtUs::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kInt64>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_State =
    ::protozero::proto_utils::FieldMetadata<
      3,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kEnum,
      ::perfetto::protos::pbzero::BeginImplFrameArgs_State,
      BeginImplFrameArgs>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_State kState() { return {}; }
  void set_state(::perfetto::protos::pbzero::BeginImplFrameArgs_State value) {
    static constexpr uint32_t field_id = FieldMetadata_State::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kEnum>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_CurrentArgs =
    ::protozero::proto_utils::FieldMetadata<
      4,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kMessage,
      BeginFrameArgs,
      BeginImplFrameArgs>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_CurrentArgs kCurrentArgs() { return {}; }
  template <typename T = BeginFrameArgs> T* set_current_args() {
    return BeginNestedMessage<T>(4);
  }


  using FieldMetadata_LastArgs =
    ::protozero::proto_utils::FieldMetadata<
      5,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kMessage,
      BeginFrameArgs,
      BeginImplFrameArgs>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_LastArgs kLastArgs() { return {}; }
  template <typename T = BeginFrameArgs> T* set_last_args() {
    return BeginNestedMessage<T>(5);
  }


  using FieldMetadata_TimestampsInUs =
    ::protozero::proto_utils::FieldMetadata<
      6,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kMessage,
      BeginImplFrameArgs_TimestampsInUs,
      BeginImplFrameArgs>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_TimestampsInUs kTimestampsInUs() { return {}; }
  template <typename T = BeginImplFrameArgs_TimestampsInUs> T* set_timestamps_in_us() {
    return BeginNestedMessage<T>(6);
  }

};

class BeginImplFrameArgs_TimestampsInUs_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/7, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
 public:
  BeginImplFrameArgs_TimestampsInUs_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
  explicit BeginImplFrameArgs_TimestampsInUs_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
  explicit BeginImplFrameArgs_TimestampsInUs_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
  bool has_interval_delta() const { return at<1>().valid(); }
  int64_t interval_delta() const { return at<1>().as_int64(); }
  bool has_now_to_deadline_delta() const { return at<2>().valid(); }
  int64_t now_to_deadline_delta() const { return at<2>().as_int64(); }
  bool has_frame_time_to_now_delta() const { return at<3>().valid(); }
  int64_t frame_time_to_now_delta() const { return at<3>().as_int64(); }
  bool has_frame_time_to_deadline_delta() const { return at<4>().valid(); }
  int64_t frame_time_to_deadline_delta() const { return at<4>().as_int64(); }
  bool has_now() const { return at<5>().valid(); }
  int64_t now() const { return at<5>().as_int64(); }
  bool has_frame_time() const { return at<6>().valid(); }
  int64_t frame_time() const { return at<6>().as_int64(); }
  bool has_deadline() const { return at<7>().valid(); }
  int64_t deadline() const { return at<7>().as_int64(); }
};

class BeginImplFrameArgs_TimestampsInUs : public ::protozero::Message {
 public:
  using Decoder = BeginImplFrameArgs_TimestampsInUs_Decoder;
  enum : int32_t {
    kIntervalDeltaFieldNumber = 1,
    kNowToDeadlineDeltaFieldNumber = 2,
    kFrameTimeToNowDeltaFieldNumber = 3,
    kFrameTimeToDeadlineDeltaFieldNumber = 4,
    kNowFieldNumber = 5,
    kFrameTimeFieldNumber = 6,
    kDeadlineFieldNumber = 7,
  };

  using FieldMetadata_IntervalDelta =
    ::protozero::proto_utils::FieldMetadata<
      1,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kInt64,
      int64_t,
      BeginImplFrameArgs_TimestampsInUs>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_IntervalDelta kIntervalDelta() { return {}; }
  void set_interval_delta(int64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_IntervalDelta::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kInt64>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_NowToDeadlineDelta =
    ::protozero::proto_utils::FieldMetadata<
      2,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kInt64,
      int64_t,
      BeginImplFrameArgs_TimestampsInUs>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_NowToDeadlineDelta kNowToDeadlineDelta() { return {}; }
  void set_now_to_deadline_delta(int64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_NowToDeadlineDelta::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kInt64>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_FrameTimeToNowDelta =
    ::protozero::proto_utils::FieldMetadata<
      3,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kInt64,
      int64_t,
      BeginImplFrameArgs_TimestampsInUs>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_FrameTimeToNowDelta kFrameTimeToNowDelta() { return {}; }
  void set_frame_time_to_now_delta(int64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_FrameTimeToNowDelta::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kInt64>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_FrameTimeToDeadlineDelta =
    ::protozero::proto_utils::FieldMetadata<
      4,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kInt64,
      int64_t,
      BeginImplFrameArgs_TimestampsInUs>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_FrameTimeToDeadlineDelta kFrameTimeToDeadlineDelta() { return {}; }
  void set_frame_time_to_deadline_delta(int64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_FrameTimeToDeadlineDelta::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kInt64>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_Now =
    ::protozero::proto_utils::FieldMetadata<
      5,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kInt64,
      int64_t,
      BeginImplFrameArgs_TimestampsInUs>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_Now kNow() { return {}; }
  void set_now(int64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_Now::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kInt64>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_FrameTime =
    ::protozero::proto_utils::FieldMetadata<
      6,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kInt64,
      int64_t,
      BeginImplFrameArgs_TimestampsInUs>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_FrameTime kFrameTime() { return {}; }
  void set_frame_time(int64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_FrameTime::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kInt64>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_Deadline =
    ::protozero::proto_utils::FieldMetadata<
      7,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kInt64,
      int64_t,
      BeginImplFrameArgs_TimestampsInUs>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_Deadline kDeadline() { return {}; }
  void set_deadline(int64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_Deadline::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kInt64>
        ::Append(*this, field_id, value);
  }
};

class BeginFrameArgs_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/10, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
 public:
  BeginFrameArgs_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
  explicit BeginFrameArgs_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
  explicit BeginFrameArgs_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
  bool has_type() const { return at<1>().valid(); }
  int32_t type() const { return at<1>().as_int32(); }
  bool has_source_id() const { return at<2>().valid(); }
  uint64_t source_id() const { return at<2>().as_uint64(); }
  bool has_sequence_number() const { return at<3>().valid(); }
  uint64_t sequence_number() const { return at<3>().as_uint64(); }
  bool has_frame_time_us() const { return at<4>().valid(); }
  int64_t frame_time_us() const { return at<4>().as_int64(); }
  bool has_deadline_us() const { return at<5>().valid(); }
  int64_t deadline_us() const { return at<5>().as_int64(); }
  bool has_interval_delta_us() const { return at<6>().valid(); }
  int64_t interval_delta_us() const { return at<6>().as_int64(); }
  bool has_on_critical_path() const { return at<7>().valid(); }
  bool on_critical_path() const { return at<7>().as_bool(); }
  bool has_animate_only() const { return at<8>().valid(); }
  bool animate_only() const { return at<8>().as_bool(); }
  bool has_source_location_iid() const { return at<9>().valid(); }
  uint64_t source_location_iid() const { return at<9>().as_uint64(); }
  bool has_source_location() const { return at<10>().valid(); }
  ::protozero::ConstBytes source_location() const { return at<10>().as_bytes(); }
};

class BeginFrameArgs : public ::protozero::Message {
 public:
  using Decoder = BeginFrameArgs_Decoder;
  enum : int32_t {
    kTypeFieldNumber = 1,
    kSourceIdFieldNumber = 2,
    kSequenceNumberFieldNumber = 3,
    kFrameTimeUsFieldNumber = 4,
    kDeadlineUsFieldNumber = 5,
    kIntervalDeltaUsFieldNumber = 6,
    kOnCriticalPathFieldNumber = 7,
    kAnimateOnlyFieldNumber = 8,
    kSourceLocationIidFieldNumber = 9,
    kSourceLocationFieldNumber = 10,
  };
  using BeginFrameArgsType = ::perfetto::protos::pbzero::BeginFrameArgs_BeginFrameArgsType;
  static const BeginFrameArgsType BEGIN_FRAME_ARGS_TYPE_UNSPECIFIED = BeginFrameArgs_BeginFrameArgsType_BEGIN_FRAME_ARGS_TYPE_UNSPECIFIED;
  static const BeginFrameArgsType BEGIN_FRAME_ARGS_TYPE_INVALID = BeginFrameArgs_BeginFrameArgsType_BEGIN_FRAME_ARGS_TYPE_INVALID;
  static const BeginFrameArgsType BEGIN_FRAME_ARGS_TYPE_NORMAL = BeginFrameArgs_BeginFrameArgsType_BEGIN_FRAME_ARGS_TYPE_NORMAL;
  static const BeginFrameArgsType BEGIN_FRAME_ARGS_TYPE_MISSED = BeginFrameArgs_BeginFrameArgsType_BEGIN_FRAME_ARGS_TYPE_MISSED;

  using FieldMetadata_Type =
    ::protozero::proto_utils::FieldMetadata<
      1,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kEnum,
      ::perfetto::protos::pbzero::BeginFrameArgs_BeginFrameArgsType,
      BeginFrameArgs>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_Type kType() { return {}; }
  void set_type(::perfetto::protos::pbzero::BeginFrameArgs_BeginFrameArgsType value) {
    static constexpr uint32_t field_id = FieldMetadata_Type::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kEnum>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_SourceId =
    ::protozero::proto_utils::FieldMetadata<
      2,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kUint64,
      uint64_t,
      BeginFrameArgs>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_SourceId kSourceId() { return {}; }
  void set_source_id(uint64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_SourceId::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kUint64>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_SequenceNumber =
    ::protozero::proto_utils::FieldMetadata<
      3,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kUint64,
      uint64_t,
      BeginFrameArgs>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_SequenceNumber kSequenceNumber() { return {}; }
  void set_sequence_number(uint64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_SequenceNumber::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kUint64>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_FrameTimeUs =
    ::protozero::proto_utils::FieldMetadata<
      4,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kInt64,
      int64_t,
      BeginFrameArgs>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_FrameTimeUs kFrameTimeUs() { return {}; }
  void set_frame_time_us(int64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_FrameTimeUs::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kInt64>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_DeadlineUs =
    ::protozero::proto_utils::FieldMetadata<
      5,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kInt64,
      int64_t,
      BeginFrameArgs>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_DeadlineUs kDeadlineUs() { return {}; }
  void set_deadline_us(int64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_DeadlineUs::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kInt64>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_IntervalDeltaUs =
    ::protozero::proto_utils::FieldMetadata<
      6,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kInt64,
      int64_t,
      BeginFrameArgs>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_IntervalDeltaUs kIntervalDeltaUs() { return {}; }
  void set_interval_delta_us(int64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_IntervalDeltaUs::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kInt64>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_OnCriticalPath =
    ::protozero::proto_utils::FieldMetadata<
      7,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kBool,
      bool,
      BeginFrameArgs>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_OnCriticalPath kOnCriticalPath() { return {}; }
  void set_on_critical_path(bool value) {
    static constexpr uint32_t field_id = FieldMetadata_OnCriticalPath::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kBool>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_AnimateOnly =
    ::protozero::proto_utils::FieldMetadata<
      8,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kBool,
      bool,
      BeginFrameArgs>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_AnimateOnly kAnimateOnly() { return {}; }
  void set_animate_only(bool value) {
    static constexpr uint32_t field_id = FieldMetadata_AnimateOnly::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kBool>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_SourceLocationIid =
    ::protozero::proto_utils::FieldMetadata<
      9,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kUint64,
      uint64_t,
      BeginFrameArgs>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_SourceLocationIid kSourceLocationIid() { return {}; }
  void set_source_location_iid(uint64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_SourceLocationIid::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kUint64>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_SourceLocation =
    ::protozero::proto_utils::FieldMetadata<
      10,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kMessage,
      SourceLocation,
      BeginFrameArgs>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_SourceLocation kSourceLocation() { return {}; }
  template <typename T = SourceLocation> T* set_source_location() {
    return BeginNestedMessage<T>(10);
  }

};

class ChromeCompositorStateMachine_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
 public:
  ChromeCompositorStateMachine_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
  explicit ChromeCompositorStateMachine_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
  explicit ChromeCompositorStateMachine_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
  bool has_major_state() const { return at<1>().valid(); }
  ::protozero::ConstBytes major_state() const { return at<1>().as_bytes(); }
  bool has_minor_state() const { return at<2>().valid(); }
  ::protozero::ConstBytes minor_state() const { return at<2>().as_bytes(); }
};

class ChromeCompositorStateMachine : public ::protozero::Message {
 public:
  using Decoder = ChromeCompositorStateMachine_Decoder;
  enum : int32_t {
    kMajorStateFieldNumber = 1,
    kMinorStateFieldNumber = 2,
  };
  using MajorState = ::perfetto::protos::pbzero::ChromeCompositorStateMachine_MajorState;
  using MinorState = ::perfetto::protos::pbzero::ChromeCompositorStateMachine_MinorState;

  using FieldMetadata_MajorState =
    ::protozero::proto_utils::FieldMetadata<
      1,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kMessage,
      ChromeCompositorStateMachine_MajorState,
      ChromeCompositorStateMachine>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_MajorState kMajorState() { return {}; }
  template <typename T = ChromeCompositorStateMachine_MajorState> T* set_major_state() {
    return BeginNestedMessage<T>(1);
  }


  using FieldMetadata_MinorState =
    ::protozero::proto_utils::FieldMetadata<
      2,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kMessage,
      ChromeCompositorStateMachine_MinorState,
      ChromeCompositorStateMachine>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_MinorState kMinorState() { return {}; }
  template <typename T = ChromeCompositorStateMachine_MinorState> T* set_minor_state() {
    return BeginNestedMessage<T>(2);
  }

};

class ChromeCompositorStateMachine_MinorState_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/46, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
 public:
  ChromeCompositorStateMachine_MinorState_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
  explicit ChromeCompositorStateMachine_MinorState_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
  explicit ChromeCompositorStateMachine_MinorState_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
  bool has_commit_count() const { return at<1>().valid(); }
  int32_t commit_count() const { return at<1>().as_int32(); }
  bool has_current_frame_number() const { return at<2>().valid(); }
  int32_t current_frame_number() const { return at<2>().as_int32(); }
  bool has_last_frame_number_submit_performed() const { return at<3>().valid(); }
  int32_t last_frame_number_submit_performed() const { return at<3>().as_int32(); }
  bool has_last_frame_number_draw_performed() const { return at<4>().valid(); }
  int32_t last_frame_number_draw_performed() const { return at<4>().as_int32(); }
  bool has_last_frame_number_begin_main_frame_sent() const { return at<5>().valid(); }
  int32_t last_frame_number_begin_main_frame_sent() const { return at<5>().as_int32(); }
  bool has_did_draw() const { return at<6>().valid(); }
  bool did_draw() const { return at<6>().as_bool(); }
  bool has_did_send_begin_main_frame_for_current_frame() const { return at<7>().valid(); }
  bool did_send_begin_main_frame_for_current_frame() const { return at<7>().as_bool(); }
  bool has_did_notify_begin_main_frame_not_expected_until() const { return at<8>().valid(); }
  bool did_notify_begin_main_frame_not_expected_until() const { return at<8>().as_bool(); }
  bool has_did_notify_begin_main_frame_not_expected_soon() const { return at<9>().valid(); }
  bool did_notify_begin_main_frame_not_expected_soon() const { return at<9>().as_bool(); }
  bool has_wants_begin_main_frame_not_expected() const { return at<10>().valid(); }
  bool wants_begin_main_frame_not_expected() const { return at<10>().as_bool(); }
  bool has_did_commit_during_frame() const { return at<11>().valid(); }
  bool did_commit_during_frame() const { return at<11>().as_bool(); }
  bool has_did_invalidate_layer_tree_frame_sink() const { return at<12>().valid(); }
  bool did_invalidate_layer_tree_frame_sink() const { return at<12>().as_bool(); }
  bool has_did_perform_impl_side_invalidaion() const { return at<13>().valid(); }
  bool did_perform_impl_side_invalidaion() const { return at<13>().as_bool(); }
  bool has_did_prepare_tiles() const { return at<14>().valid(); }
  bool did_prepare_tiles() const { return at<14>().as_bool(); }
  bool has_consecutive_checkerboard_animations() const { return at<15>().valid(); }
  int32_t consecutive_checkerboard_animations() const { return at<15>().as_int32(); }
  bool has_pending_submit_frames() const { return at<16>().valid(); }
  int32_t pending_submit_frames() const { return at<16>().as_int32(); }
  bool has_submit_frames_with_current_layer_tree_frame_sink() const { return at<17>().valid(); }
  int32_t submit_frames_with_current_layer_tree_frame_sink() const { return at<17>().as_int32(); }
  bool has_needs_redraw() const { return at<18>().valid(); }
  bool needs_redraw() const { return at<18>().as_bool(); }
  bool has_needs_prepare_tiles() const { return at<19>().valid(); }
  bool needs_prepare_tiles() const { return at<19>().as_bool(); }
  bool has_needs_begin_main_frame() const { return at<20>().valid(); }
  bool needs_begin_main_frame() const { return at<20>().as_bool(); }
  bool has_needs_one_begin_impl_frame() const { return at<21>().valid(); }
  bool needs_one_begin_impl_frame() const { return at<21>().as_bool(); }
  bool has_visible() const { return at<22>().valid(); }
  bool visible() const { return at<22>().as_bool(); }
  bool has_begin_frame_source_paused() const { return at<23>().valid(); }
  bool begin_frame_source_paused() const { return at<23>().as_bool(); }
  bool has_can_draw() const { return at<24>().valid(); }
  bool can_draw() const { return at<24>().as_bool(); }
  bool has_resourceless_draw() const { return at<25>().valid(); }
  bool resourceless_draw() const { return at<25>().as_bool(); }
  bool has_has_pending_tree() const { return at<26>().valid(); }
  bool has_pending_tree() const { return at<26>().as_bool(); }
  bool has_pending_tree_is_ready_for_activation() const { return at<27>().valid(); }
  bool pending_tree_is_ready_for_activation() const { return at<27>().as_bool(); }
  bool has_active_tree_needs_first_draw() const { return at<28>().valid(); }
  bool active_tree_needs_first_draw() const { return at<28>().as_bool(); }
  bool has_active_tree_is_ready_to_draw() const { return at<29>().valid(); }
  bool active_tree_is_ready_to_draw() const { return at<29>().as_bool(); }
  bool has_did_create_and_initialize_first_layer_tree_frame_sink() const { return at<30>().valid(); }
  bool did_create_and_initialize_first_layer_tree_frame_sink() const { return at<30>().as_bool(); }
  bool has_tree_priority() const { return at<31>().valid(); }
  int32_t tree_priority() const { return at<31>().as_int32(); }
  bool has_scroll_handler_state() const { return at<32>().valid(); }
  int32_t scroll_handler_state() const { return at<32>().as_int32(); }
  bool has_critical_begin_main_frame_to_activate_is_fast() const { return at<33>().valid(); }
  bool critical_begin_main_frame_to_activate_is_fast() const { return at<33>().as_bool(); }
  bool has_main_thread_missed_last_deadline() const { return at<34>().valid(); }
  bool main_thread_missed_last_deadline() const { return at<34>().as_bool(); }
  bool has_skip_next_begin_main_frame_to_reduce_latency() const { return at<35>().valid(); }
  bool skip_next_begin_main_frame_to_reduce_latency() const { return at<35>().as_bool(); }
  bool has_video_needs_begin_frames() const { return at<36>().valid(); }
  bool video_needs_begin_frames() const { return at<36>().as_bool(); }
  bool has_defer_begin_main_frame() const { return at<37>().valid(); }
  bool defer_begin_main_frame() const { return at<37>().as_bool(); }
  bool has_last_commit_had_no_updates() const { return at<38>().valid(); }
  bool last_commit_had_no_updates() const { return at<38>().as_bool(); }
  bool has_did_draw_in_last_frame() const { return at<39>().valid(); }
  bool did_draw_in_last_frame() const { return at<39>().as_bool(); }
  bool has_did_submit_in_last_frame() const { return at<40>().valid(); }
  bool did_submit_in_last_frame() const { return at<40>().as_bool(); }
  bool has_needs_impl_side_invalidation() const { return at<41>().valid(); }
  bool needs_impl_side_invalidation() const { return at<41>().as_bool(); }
  bool has_current_pending_tree_is_impl_side() const { return at<42>().valid(); }
  bool current_pending_tree_is_impl_side() const { return at<42>().as_bool(); }
  bool has_previous_pending_tree_was_impl_side() const { return at<43>().valid(); }
  bool previous_pending_tree_was_impl_side() const { return at<43>().as_bool(); }
  bool has_processing_animation_worklets_for_active_tree() const { return at<44>().valid(); }
  bool processing_animation_worklets_for_active_tree() const { return at<44>().as_bool(); }
  bool has_processing_animation_worklets_for_pending_tree() const { return at<45>().valid(); }
  bool processing_animation_worklets_for_pending_tree() const { return at<45>().as_bool(); }
  bool has_processing_paint_worklets_for_pending_tree() const { return at<46>().valid(); }
  bool processing_paint_worklets_for_pending_tree() const { return at<46>().as_bool(); }
};

class ChromeCompositorStateMachine_MinorState : public ::protozero::Message {
 public:
  using Decoder = ChromeCompositorStateMachine_MinorState_Decoder;
  enum : int32_t {
    kCommitCountFieldNumber = 1,
    kCurrentFrameNumberFieldNumber = 2,
    kLastFrameNumberSubmitPerformedFieldNumber = 3,
    kLastFrameNumberDrawPerformedFieldNumber = 4,
    kLastFrameNumberBeginMainFrameSentFieldNumber = 5,
    kDidDrawFieldNumber = 6,
    kDidSendBeginMainFrameForCurrentFrameFieldNumber = 7,
    kDidNotifyBeginMainFrameNotExpectedUntilFieldNumber = 8,
    kDidNotifyBeginMainFrameNotExpectedSoonFieldNumber = 9,
    kWantsBeginMainFrameNotExpectedFieldNumber = 10,
    kDidCommitDuringFrameFieldNumber = 11,
    kDidInvalidateLayerTreeFrameSinkFieldNumber = 12,
    kDidPerformImplSideInvalidaionFieldNumber = 13,
    kDidPrepareTilesFieldNumber = 14,
    kConsecutiveCheckerboardAnimationsFieldNumber = 15,
    kPendingSubmitFramesFieldNumber = 16,
    kSubmitFramesWithCurrentLayerTreeFrameSinkFieldNumber = 17,
    kNeedsRedrawFieldNumber = 18,
    kNeedsPrepareTilesFieldNumber = 19,
    kNeedsBeginMainFrameFieldNumber = 20,
    kNeedsOneBeginImplFrameFieldNumber = 21,
    kVisibleFieldNumber = 22,
    kBeginFrameSourcePausedFieldNumber = 23,
    kCanDrawFieldNumber = 24,
    kResourcelessDrawFieldNumber = 25,
    kHasPendingTreeFieldNumber = 26,
    kPendingTreeIsReadyForActivationFieldNumber = 27,
    kActiveTreeNeedsFirstDrawFieldNumber = 28,
    kActiveTreeIsReadyToDrawFieldNumber = 29,
    kDidCreateAndInitializeFirstLayerTreeFrameSinkFieldNumber = 30,
    kTreePriorityFieldNumber = 31,
    kScrollHandlerStateFieldNumber = 32,
    kCriticalBeginMainFrameToActivateIsFastFieldNumber = 33,
    kMainThreadMissedLastDeadlineFieldNumber = 34,
    kSkipNextBeginMainFrameToReduceLatencyFieldNumber = 35,
    kVideoNeedsBeginFramesFieldNumber = 36,
    kDeferBeginMainFrameFieldNumber = 37,
    kLastCommitHadNoUpdatesFieldNumber = 38,
    kDidDrawInLastFrameFieldNumber = 39,
    kDidSubmitInLastFrameFieldNumber = 40,
    kNeedsImplSideInvalidationFieldNumber = 41,
    kCurrentPendingTreeIsImplSideFieldNumber = 42,
    kPreviousPendingTreeWasImplSideFieldNumber = 43,
    kProcessingAnimationWorkletsForActiveTreeFieldNumber = 44,
    kProcessingAnimationWorkletsForPendingTreeFieldNumber = 45,
    kProcessingPaintWorkletsForPendingTreeFieldNumber = 46,
  };
  using TreePriority = ::perfetto::protos::pbzero::ChromeCompositorStateMachine_MinorState_TreePriority;
  using ScrollHandlerState = ::perfetto::protos::pbzero::ChromeCompositorStateMachine_MinorState_ScrollHandlerState;
  static const TreePriority TREE_PRIORITY_UNSPECIFIED = ChromeCompositorStateMachine_MinorState_TreePriority_TREE_PRIORITY_UNSPECIFIED;
  static const TreePriority TREE_PRIORITY_SAME_PRIORITY_FOR_BOTH_TREES = ChromeCompositorStateMachine_MinorState_TreePriority_TREE_PRIORITY_SAME_PRIORITY_FOR_BOTH_TREES;
  static const TreePriority TREE_PRIORITY_SMOOTHNESS_TAKES_PRIORITY = ChromeCompositorStateMachine_MinorState_TreePriority_TREE_PRIORITY_SMOOTHNESS_TAKES_PRIORITY;
  static const TreePriority TREE_PRIORITY_NEW_CONTENT_TAKES_PRIORITY = ChromeCompositorStateMachine_MinorState_TreePriority_TREE_PRIORITY_NEW_CONTENT_TAKES_PRIORITY;
  static const ScrollHandlerState SCROLL_HANDLER_UNSPECIFIED = ChromeCompositorStateMachine_MinorState_ScrollHandlerState_SCROLL_HANDLER_UNSPECIFIED;
  static const ScrollHandlerState SCROLL_AFFECTS_SCROLL_HANDLER = ChromeCompositorStateMachine_MinorState_ScrollHandlerState_SCROLL_AFFECTS_SCROLL_HANDLER;
  static const ScrollHandlerState SCROLL_DOES_NOT_AFFECT_SCROLL_HANDLER = ChromeCompositorStateMachine_MinorState_ScrollHandlerState_SCROLL_DOES_NOT_AFFECT_SCROLL_HANDLER;

  using FieldMetadata_CommitCount =
    ::protozero::proto_utils::FieldMetadata<
      1,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kInt32,
      int32_t,
      ChromeCompositorStateMachine_MinorState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_CommitCount kCommitCount() { return {}; }
  void set_commit_count(int32_t value) {
    static constexpr uint32_t field_id = FieldMetadata_CommitCount::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kInt32>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_CurrentFrameNumber =
    ::protozero::proto_utils::FieldMetadata<
      2,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kInt32,
      int32_t,
      ChromeCompositorStateMachine_MinorState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_CurrentFrameNumber kCurrentFrameNumber() { return {}; }
  void set_current_frame_number(int32_t value) {
    static constexpr uint32_t field_id = FieldMetadata_CurrentFrameNumber::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kInt32>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_LastFrameNumberSubmitPerformed =
    ::protozero::proto_utils::FieldMetadata<
      3,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kInt32,
      int32_t,
      ChromeCompositorStateMachine_MinorState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_LastFrameNumberSubmitPerformed kLastFrameNumberSubmitPerformed() { return {}; }
  void set_last_frame_number_submit_performed(int32_t value) {
    static constexpr uint32_t field_id = FieldMetadata_LastFrameNumberSubmitPerformed::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kInt32>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_LastFrameNumberDrawPerformed =
    ::protozero::proto_utils::FieldMetadata<
      4,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kInt32,
      int32_t,
      ChromeCompositorStateMachine_MinorState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_LastFrameNumberDrawPerformed kLastFrameNumberDrawPerformed() { return {}; }
  void set_last_frame_number_draw_performed(int32_t value) {
    static constexpr uint32_t field_id = FieldMetadata_LastFrameNumberDrawPerformed::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kInt32>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_LastFrameNumberBeginMainFrameSent =
    ::protozero::proto_utils::FieldMetadata<
      5,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kInt32,
      int32_t,
      ChromeCompositorStateMachine_MinorState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_LastFrameNumberBeginMainFrameSent kLastFrameNumberBeginMainFrameSent() { return {}; }
  void set_last_frame_number_begin_main_frame_sent(int32_t value) {
    static constexpr uint32_t field_id = FieldMetadata_LastFrameNumberBeginMainFrameSent::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kInt32>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_DidDraw =
    ::protozero::proto_utils::FieldMetadata<
      6,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kBool,
      bool,
      ChromeCompositorStateMachine_MinorState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_DidDraw kDidDraw() { return {}; }
  void set_did_draw(bool value) {
    static constexpr uint32_t field_id = FieldMetadata_DidDraw::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kBool>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_DidSendBeginMainFrameForCurrentFrame =
    ::protozero::proto_utils::FieldMetadata<
      7,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kBool,
      bool,
      ChromeCompositorStateMachine_MinorState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_DidSendBeginMainFrameForCurrentFrame kDidSendBeginMainFrameForCurrentFrame() { return {}; }
  void set_did_send_begin_main_frame_for_current_frame(bool value) {
    static constexpr uint32_t field_id = FieldMetadata_DidSendBeginMainFrameForCurrentFrame::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kBool>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_DidNotifyBeginMainFrameNotExpectedUntil =
    ::protozero::proto_utils::FieldMetadata<
      8,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kBool,
      bool,
      ChromeCompositorStateMachine_MinorState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_DidNotifyBeginMainFrameNotExpectedUntil kDidNotifyBeginMainFrameNotExpectedUntil() { return {}; }
  void set_did_notify_begin_main_frame_not_expected_until(bool value) {
    static constexpr uint32_t field_id = FieldMetadata_DidNotifyBeginMainFrameNotExpectedUntil::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kBool>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_DidNotifyBeginMainFrameNotExpectedSoon =
    ::protozero::proto_utils::FieldMetadata<
      9,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kBool,
      bool,
      ChromeCompositorStateMachine_MinorState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_DidNotifyBeginMainFrameNotExpectedSoon kDidNotifyBeginMainFrameNotExpectedSoon() { return {}; }
  void set_did_notify_begin_main_frame_not_expected_soon(bool value) {
    static constexpr uint32_t field_id = FieldMetadata_DidNotifyBeginMainFrameNotExpectedSoon::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kBool>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_WantsBeginMainFrameNotExpected =
    ::protozero::proto_utils::FieldMetadata<
      10,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kBool,
      bool,
      ChromeCompositorStateMachine_MinorState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_WantsBeginMainFrameNotExpected kWantsBeginMainFrameNotExpected() { return {}; }
  void set_wants_begin_main_frame_not_expected(bool value) {
    static constexpr uint32_t field_id = FieldMetadata_WantsBeginMainFrameNotExpected::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kBool>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_DidCommitDuringFrame =
    ::protozero::proto_utils::FieldMetadata<
      11,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kBool,
      bool,
      ChromeCompositorStateMachine_MinorState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_DidCommitDuringFrame kDidCommitDuringFrame() { return {}; }
  void set_did_commit_during_frame(bool value) {
    static constexpr uint32_t field_id = FieldMetadata_DidCommitDuringFrame::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kBool>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_DidInvalidateLayerTreeFrameSink =
    ::protozero::proto_utils::FieldMetadata<
      12,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kBool,
      bool,
      ChromeCompositorStateMachine_MinorState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_DidInvalidateLayerTreeFrameSink kDidInvalidateLayerTreeFrameSink() { return {}; }
  void set_did_invalidate_layer_tree_frame_sink(bool value) {
    static constexpr uint32_t field_id = FieldMetadata_DidInvalidateLayerTreeFrameSink::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kBool>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_DidPerformImplSideInvalidaion =
    ::protozero::proto_utils::FieldMetadata<
      13,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kBool,
      bool,
      ChromeCompositorStateMachine_MinorState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_DidPerformImplSideInvalidaion kDidPerformImplSideInvalidaion() { return {}; }
  void set_did_perform_impl_side_invalidaion(bool value) {
    static constexpr uint32_t field_id = FieldMetadata_DidPerformImplSideInvalidaion::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kBool>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_DidPrepareTiles =
    ::protozero::proto_utils::FieldMetadata<
      14,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kBool,
      bool,
      ChromeCompositorStateMachine_MinorState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_DidPrepareTiles kDidPrepareTiles() { return {}; }
  void set_did_prepare_tiles(bool value) {
    static constexpr uint32_t field_id = FieldMetadata_DidPrepareTiles::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kBool>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_ConsecutiveCheckerboardAnimations =
    ::protozero::proto_utils::FieldMetadata<
      15,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kInt32,
      int32_t,
      ChromeCompositorStateMachine_MinorState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_ConsecutiveCheckerboardAnimations kConsecutiveCheckerboardAnimations() { return {}; }
  void set_consecutive_checkerboard_animations(int32_t value) {
    static constexpr uint32_t field_id = FieldMetadata_ConsecutiveCheckerboardAnimations::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kInt32>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_PendingSubmitFrames =
    ::protozero::proto_utils::FieldMetadata<
      16,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kInt32,
      int32_t,
      ChromeCompositorStateMachine_MinorState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_PendingSubmitFrames kPendingSubmitFrames() { return {}; }
  void set_pending_submit_frames(int32_t value) {
    static constexpr uint32_t field_id = FieldMetadata_PendingSubmitFrames::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kInt32>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_SubmitFramesWithCurrentLayerTreeFrameSink =
    ::protozero::proto_utils::FieldMetadata<
      17,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kInt32,
      int32_t,
      ChromeCompositorStateMachine_MinorState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_SubmitFramesWithCurrentLayerTreeFrameSink kSubmitFramesWithCurrentLayerTreeFrameSink() { return {}; }
  void set_submit_frames_with_current_layer_tree_frame_sink(int32_t value) {
    static constexpr uint32_t field_id = FieldMetadata_SubmitFramesWithCurrentLayerTreeFrameSink::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kInt32>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_NeedsRedraw =
    ::protozero::proto_utils::FieldMetadata<
      18,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kBool,
      bool,
      ChromeCompositorStateMachine_MinorState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_NeedsRedraw kNeedsRedraw() { return {}; }
  void set_needs_redraw(bool value) {
    static constexpr uint32_t field_id = FieldMetadata_NeedsRedraw::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kBool>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_NeedsPrepareTiles =
    ::protozero::proto_utils::FieldMetadata<
      19,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kBool,
      bool,
      ChromeCompositorStateMachine_MinorState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_NeedsPrepareTiles kNeedsPrepareTiles() { return {}; }
  void set_needs_prepare_tiles(bool value) {
    static constexpr uint32_t field_id = FieldMetadata_NeedsPrepareTiles::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kBool>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_NeedsBeginMainFrame =
    ::protozero::proto_utils::FieldMetadata<
      20,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kBool,
      bool,
      ChromeCompositorStateMachine_MinorState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_NeedsBeginMainFrame kNeedsBeginMainFrame() { return {}; }
  void set_needs_begin_main_frame(bool value) {
    static constexpr uint32_t field_id = FieldMetadata_NeedsBeginMainFrame::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kBool>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_NeedsOneBeginImplFrame =
    ::protozero::proto_utils::FieldMetadata<
      21,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kBool,
      bool,
      ChromeCompositorStateMachine_MinorState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_NeedsOneBeginImplFrame kNeedsOneBeginImplFrame() { return {}; }
  void set_needs_one_begin_impl_frame(bool value) {
    static constexpr uint32_t field_id = FieldMetadata_NeedsOneBeginImplFrame::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kBool>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_Visible =
    ::protozero::proto_utils::FieldMetadata<
      22,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kBool,
      bool,
      ChromeCompositorStateMachine_MinorState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_Visible kVisible() { return {}; }
  void set_visible(bool value) {
    static constexpr uint32_t field_id = FieldMetadata_Visible::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kBool>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_BeginFrameSourcePaused =
    ::protozero::proto_utils::FieldMetadata<
      23,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kBool,
      bool,
      ChromeCompositorStateMachine_MinorState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_BeginFrameSourcePaused kBeginFrameSourcePaused() { return {}; }
  void set_begin_frame_source_paused(bool value) {
    static constexpr uint32_t field_id = FieldMetadata_BeginFrameSourcePaused::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kBool>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_CanDraw =
    ::protozero::proto_utils::FieldMetadata<
      24,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kBool,
      bool,
      ChromeCompositorStateMachine_MinorState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_CanDraw kCanDraw() { return {}; }
  void set_can_draw(bool value) {
    static constexpr uint32_t field_id = FieldMetadata_CanDraw::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kBool>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_ResourcelessDraw =
    ::protozero::proto_utils::FieldMetadata<
      25,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kBool,
      bool,
      ChromeCompositorStateMachine_MinorState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_ResourcelessDraw kResourcelessDraw() { return {}; }
  void set_resourceless_draw(bool value) {
    static constexpr uint32_t field_id = FieldMetadata_ResourcelessDraw::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kBool>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_HasPendingTree =
    ::protozero::proto_utils::FieldMetadata<
      26,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kBool,
      bool,
      ChromeCompositorStateMachine_MinorState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_HasPendingTree kHasPendingTree() { return {}; }
  void set_has_pending_tree(bool value) {
    static constexpr uint32_t field_id = FieldMetadata_HasPendingTree::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kBool>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_PendingTreeIsReadyForActivation =
    ::protozero::proto_utils::FieldMetadata<
      27,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kBool,
      bool,
      ChromeCompositorStateMachine_MinorState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_PendingTreeIsReadyForActivation kPendingTreeIsReadyForActivation() { return {}; }
  void set_pending_tree_is_ready_for_activation(bool value) {
    static constexpr uint32_t field_id = FieldMetadata_PendingTreeIsReadyForActivation::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kBool>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_ActiveTreeNeedsFirstDraw =
    ::protozero::proto_utils::FieldMetadata<
      28,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kBool,
      bool,
      ChromeCompositorStateMachine_MinorState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_ActiveTreeNeedsFirstDraw kActiveTreeNeedsFirstDraw() { return {}; }
  void set_active_tree_needs_first_draw(bool value) {
    static constexpr uint32_t field_id = FieldMetadata_ActiveTreeNeedsFirstDraw::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kBool>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_ActiveTreeIsReadyToDraw =
    ::protozero::proto_utils::FieldMetadata<
      29,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kBool,
      bool,
      ChromeCompositorStateMachine_MinorState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_ActiveTreeIsReadyToDraw kActiveTreeIsReadyToDraw() { return {}; }
  void set_active_tree_is_ready_to_draw(bool value) {
    static constexpr uint32_t field_id = FieldMetadata_ActiveTreeIsReadyToDraw::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kBool>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_DidCreateAndInitializeFirstLayerTreeFrameSink =
    ::protozero::proto_utils::FieldMetadata<
      30,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kBool,
      bool,
      ChromeCompositorStateMachine_MinorState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_DidCreateAndInitializeFirstLayerTreeFrameSink kDidCreateAndInitializeFirstLayerTreeFrameSink() { return {}; }
  void set_did_create_and_initialize_first_layer_tree_frame_sink(bool value) {
    static constexpr uint32_t field_id = FieldMetadata_DidCreateAndInitializeFirstLayerTreeFrameSink::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kBool>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_TreePriority =
    ::protozero::proto_utils::FieldMetadata<
      31,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kEnum,
      ::perfetto::protos::pbzero::ChromeCompositorStateMachine_MinorState_TreePriority,
      ChromeCompositorStateMachine_MinorState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_TreePriority kTreePriority() { return {}; }
  void set_tree_priority(::perfetto::protos::pbzero::ChromeCompositorStateMachine_MinorState_TreePriority value) {
    static constexpr uint32_t field_id = FieldMetadata_TreePriority::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kEnum>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_ScrollHandlerState =
    ::protozero::proto_utils::FieldMetadata<
      32,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kEnum,
      ::perfetto::protos::pbzero::ChromeCompositorStateMachine_MinorState_ScrollHandlerState,
      ChromeCompositorStateMachine_MinorState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_ScrollHandlerState kScrollHandlerState() { return {}; }
  void set_scroll_handler_state(::perfetto::protos::pbzero::ChromeCompositorStateMachine_MinorState_ScrollHandlerState value) {
    static constexpr uint32_t field_id = FieldMetadata_ScrollHandlerState::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kEnum>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_CriticalBeginMainFrameToActivateIsFast =
    ::protozero::proto_utils::FieldMetadata<
      33,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kBool,
      bool,
      ChromeCompositorStateMachine_MinorState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_CriticalBeginMainFrameToActivateIsFast kCriticalBeginMainFrameToActivateIsFast() { return {}; }
  void set_critical_begin_main_frame_to_activate_is_fast(bool value) {
    static constexpr uint32_t field_id = FieldMetadata_CriticalBeginMainFrameToActivateIsFast::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kBool>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_MainThreadMissedLastDeadline =
    ::protozero::proto_utils::FieldMetadata<
      34,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kBool,
      bool,
      ChromeCompositorStateMachine_MinorState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_MainThreadMissedLastDeadline kMainThreadMissedLastDeadline() { return {}; }
  void set_main_thread_missed_last_deadline(bool value) {
    static constexpr uint32_t field_id = FieldMetadata_MainThreadMissedLastDeadline::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kBool>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_SkipNextBeginMainFrameToReduceLatency =
    ::protozero::proto_utils::FieldMetadata<
      35,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kBool,
      bool,
      ChromeCompositorStateMachine_MinorState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_SkipNextBeginMainFrameToReduceLatency kSkipNextBeginMainFrameToReduceLatency() { return {}; }
  void set_skip_next_begin_main_frame_to_reduce_latency(bool value) {
    static constexpr uint32_t field_id = FieldMetadata_SkipNextBeginMainFrameToReduceLatency::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kBool>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_VideoNeedsBeginFrames =
    ::protozero::proto_utils::FieldMetadata<
      36,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kBool,
      bool,
      ChromeCompositorStateMachine_MinorState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_VideoNeedsBeginFrames kVideoNeedsBeginFrames() { return {}; }
  void set_video_needs_begin_frames(bool value) {
    static constexpr uint32_t field_id = FieldMetadata_VideoNeedsBeginFrames::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kBool>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_DeferBeginMainFrame =
    ::protozero::proto_utils::FieldMetadata<
      37,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kBool,
      bool,
      ChromeCompositorStateMachine_MinorState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_DeferBeginMainFrame kDeferBeginMainFrame() { return {}; }
  void set_defer_begin_main_frame(bool value) {
    static constexpr uint32_t field_id = FieldMetadata_DeferBeginMainFrame::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kBool>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_LastCommitHadNoUpdates =
    ::protozero::proto_utils::FieldMetadata<
      38,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kBool,
      bool,
      ChromeCompositorStateMachine_MinorState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_LastCommitHadNoUpdates kLastCommitHadNoUpdates() { return {}; }
  void set_last_commit_had_no_updates(bool value) {
    static constexpr uint32_t field_id = FieldMetadata_LastCommitHadNoUpdates::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kBool>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_DidDrawInLastFrame =
    ::protozero::proto_utils::FieldMetadata<
      39,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kBool,
      bool,
      ChromeCompositorStateMachine_MinorState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_DidDrawInLastFrame kDidDrawInLastFrame() { return {}; }
  void set_did_draw_in_last_frame(bool value) {
    static constexpr uint32_t field_id = FieldMetadata_DidDrawInLastFrame::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kBool>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_DidSubmitInLastFrame =
    ::protozero::proto_utils::FieldMetadata<
      40,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kBool,
      bool,
      ChromeCompositorStateMachine_MinorState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_DidSubmitInLastFrame kDidSubmitInLastFrame() { return {}; }
  void set_did_submit_in_last_frame(bool value) {
    static constexpr uint32_t field_id = FieldMetadata_DidSubmitInLastFrame::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kBool>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_NeedsImplSideInvalidation =
    ::protozero::proto_utils::FieldMetadata<
      41,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kBool,
      bool,
      ChromeCompositorStateMachine_MinorState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_NeedsImplSideInvalidation kNeedsImplSideInvalidation() { return {}; }
  void set_needs_impl_side_invalidation(bool value) {
    static constexpr uint32_t field_id = FieldMetadata_NeedsImplSideInvalidation::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kBool>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_CurrentPendingTreeIsImplSide =
    ::protozero::proto_utils::FieldMetadata<
      42,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kBool,
      bool,
      ChromeCompositorStateMachine_MinorState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_CurrentPendingTreeIsImplSide kCurrentPendingTreeIsImplSide() { return {}; }
  void set_current_pending_tree_is_impl_side(bool value) {
    static constexpr uint32_t field_id = FieldMetadata_CurrentPendingTreeIsImplSide::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kBool>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_PreviousPendingTreeWasImplSide =
    ::protozero::proto_utils::FieldMetadata<
      43,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kBool,
      bool,
      ChromeCompositorStateMachine_MinorState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_PreviousPendingTreeWasImplSide kPreviousPendingTreeWasImplSide() { return {}; }
  void set_previous_pending_tree_was_impl_side(bool value) {
    static constexpr uint32_t field_id = FieldMetadata_PreviousPendingTreeWasImplSide::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kBool>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_ProcessingAnimationWorkletsForActiveTree =
    ::protozero::proto_utils::FieldMetadata<
      44,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kBool,
      bool,
      ChromeCompositorStateMachine_MinorState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_ProcessingAnimationWorkletsForActiveTree kProcessingAnimationWorkletsForActiveTree() { return {}; }
  void set_processing_animation_worklets_for_active_tree(bool value) {
    static constexpr uint32_t field_id = FieldMetadata_ProcessingAnimationWorkletsForActiveTree::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kBool>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_ProcessingAnimationWorkletsForPendingTree =
    ::protozero::proto_utils::FieldMetadata<
      45,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kBool,
      bool,
      ChromeCompositorStateMachine_MinorState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_ProcessingAnimationWorkletsForPendingTree kProcessingAnimationWorkletsForPendingTree() { return {}; }
  void set_processing_animation_worklets_for_pending_tree(bool value) {
    static constexpr uint32_t field_id = FieldMetadata_ProcessingAnimationWorkletsForPendingTree::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kBool>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_ProcessingPaintWorkletsForPendingTree =
    ::protozero::proto_utils::FieldMetadata<
      46,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kBool,
      bool,
      ChromeCompositorStateMachine_MinorState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_ProcessingPaintWorkletsForPendingTree kProcessingPaintWorkletsForPendingTree() { return {}; }
  void set_processing_paint_worklets_for_pending_tree(bool value) {
    static constexpr uint32_t field_id = FieldMetadata_ProcessingPaintWorkletsForPendingTree::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kBool>
        ::Append(*this, field_id, value);
  }
};

class ChromeCompositorStateMachine_MajorState_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
 public:
  ChromeCompositorStateMachine_MajorState_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
  explicit ChromeCompositorStateMachine_MajorState_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
  explicit ChromeCompositorStateMachine_MajorState_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
  bool has_next_action() const { return at<1>().valid(); }
  int32_t next_action() const { return at<1>().as_int32(); }
  bool has_begin_impl_frame_state() const { return at<2>().valid(); }
  int32_t begin_impl_frame_state() const { return at<2>().as_int32(); }
  bool has_begin_main_frame_state() const { return at<3>().valid(); }
  int32_t begin_main_frame_state() const { return at<3>().as_int32(); }
  bool has_layer_tree_frame_sink_state() const { return at<4>().valid(); }
  int32_t layer_tree_frame_sink_state() const { return at<4>().as_int32(); }
  bool has_forced_redraw_state() const { return at<5>().valid(); }
  int32_t forced_redraw_state() const { return at<5>().as_int32(); }
};

class ChromeCompositorStateMachine_MajorState : public ::protozero::Message {
 public:
  using Decoder = ChromeCompositorStateMachine_MajorState_Decoder;
  enum : int32_t {
    kNextActionFieldNumber = 1,
    kBeginImplFrameStateFieldNumber = 2,
    kBeginMainFrameStateFieldNumber = 3,
    kLayerTreeFrameSinkStateFieldNumber = 4,
    kForcedRedrawStateFieldNumber = 5,
  };
  using BeginImplFrameState = ::perfetto::protos::pbzero::ChromeCompositorStateMachine_MajorState_BeginImplFrameState;
  using BeginMainFrameState = ::perfetto::protos::pbzero::ChromeCompositorStateMachine_MajorState_BeginMainFrameState;
  using LayerTreeFrameSinkState = ::perfetto::protos::pbzero::ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState;
  using ForcedRedrawOnTimeoutState = ::perfetto::protos::pbzero::ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState;
  static const BeginImplFrameState BEGIN_IMPL_FRAME_UNSPECIFIED = ChromeCompositorStateMachine_MajorState_BeginImplFrameState_BEGIN_IMPL_FRAME_UNSPECIFIED;
  static const BeginImplFrameState BEGIN_IMPL_FRAME_IDLE = ChromeCompositorStateMachine_MajorState_BeginImplFrameState_BEGIN_IMPL_FRAME_IDLE;
  static const BeginImplFrameState BEGIN_IMPL_FRAME_INSIDE_BEGIN_FRAME = ChromeCompositorStateMachine_MajorState_BeginImplFrameState_BEGIN_IMPL_FRAME_INSIDE_BEGIN_FRAME;
  static const BeginImplFrameState BEGIN_IMPL_FRAME_INSIDE_DEADLINE = ChromeCompositorStateMachine_MajorState_BeginImplFrameState_BEGIN_IMPL_FRAME_INSIDE_DEADLINE;
  static const BeginMainFrameState BEGIN_MAIN_FRAME_UNSPECIFIED = ChromeCompositorStateMachine_MajorState_BeginMainFrameState_BEGIN_MAIN_FRAME_UNSPECIFIED;
  static const BeginMainFrameState BEGIN_MAIN_FRAME_IDLE = ChromeCompositorStateMachine_MajorState_BeginMainFrameState_BEGIN_MAIN_FRAME_IDLE;
  static const BeginMainFrameState BEGIN_MAIN_FRAME_SENT = ChromeCompositorStateMachine_MajorState_BeginMainFrameState_BEGIN_MAIN_FRAME_SENT;
  static const BeginMainFrameState BEGIN_MAIN_FRAME_READY_TO_COMMIT = ChromeCompositorStateMachine_MajorState_BeginMainFrameState_BEGIN_MAIN_FRAME_READY_TO_COMMIT;
  static const LayerTreeFrameSinkState LAYER_TREE_FRAME_UNSPECIFIED = ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_UNSPECIFIED;
  static const LayerTreeFrameSinkState LAYER_TREE_FRAME_NONE = ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_NONE;
  static const LayerTreeFrameSinkState LAYER_TREE_FRAME_ACTIVE = ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_ACTIVE;
  static const LayerTreeFrameSinkState LAYER_TREE_FRAME_CREATING = ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_CREATING;
  static const LayerTreeFrameSinkState LAYER_TREE_FRAME_WAITING_FOR_FIRST_COMMIT = ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_WAITING_FOR_FIRST_COMMIT;
  static const LayerTreeFrameSinkState LAYER_TREE_FRAME_WAITING_FOR_FIRST_ACTIVATION = ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_WAITING_FOR_FIRST_ACTIVATION;
  static const ForcedRedrawOnTimeoutState FORCED_REDRAW_UNSPECIFIED = ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState_FORCED_REDRAW_UNSPECIFIED;
  static const ForcedRedrawOnTimeoutState FORCED_REDRAW_IDLE = ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState_FORCED_REDRAW_IDLE;
  static const ForcedRedrawOnTimeoutState FORCED_REDRAW_WAITING_FOR_COMMIT = ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState_FORCED_REDRAW_WAITING_FOR_COMMIT;
  static const ForcedRedrawOnTimeoutState FORCED_REDRAW_WAITING_FOR_ACTIVATION = ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState_FORCED_REDRAW_WAITING_FOR_ACTIVATION;
  static const ForcedRedrawOnTimeoutState FORCED_REDRAW_WAITING_FOR_DRAW = ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState_FORCED_REDRAW_WAITING_FOR_DRAW;

  using FieldMetadata_NextAction =
    ::protozero::proto_utils::FieldMetadata<
      1,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kEnum,
      ::perfetto::protos::pbzero::ChromeCompositorSchedulerAction,
      ChromeCompositorStateMachine_MajorState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_NextAction kNextAction() { return {}; }
  void set_next_action(::perfetto::protos::pbzero::ChromeCompositorSchedulerAction value) {
    static constexpr uint32_t field_id = FieldMetadata_NextAction::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kEnum>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_BeginImplFrameState =
    ::protozero::proto_utils::FieldMetadata<
      2,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kEnum,
      ::perfetto::protos::pbzero::ChromeCompositorStateMachine_MajorState_BeginImplFrameState,
      ChromeCompositorStateMachine_MajorState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_BeginImplFrameState kBeginImplFrameState() { return {}; }
  void set_begin_impl_frame_state(::perfetto::protos::pbzero::ChromeCompositorStateMachine_MajorState_BeginImplFrameState value) {
    static constexpr uint32_t field_id = FieldMetadata_BeginImplFrameState::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kEnum>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_BeginMainFrameState =
    ::protozero::proto_utils::FieldMetadata<
      3,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kEnum,
      ::perfetto::protos::pbzero::ChromeCompositorStateMachine_MajorState_BeginMainFrameState,
      ChromeCompositorStateMachine_MajorState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_BeginMainFrameState kBeginMainFrameState() { return {}; }
  void set_begin_main_frame_state(::perfetto::protos::pbzero::ChromeCompositorStateMachine_MajorState_BeginMainFrameState value) {
    static constexpr uint32_t field_id = FieldMetadata_BeginMainFrameState::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kEnum>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_LayerTreeFrameSinkState =
    ::protozero::proto_utils::FieldMetadata<
      4,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kEnum,
      ::perfetto::protos::pbzero::ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState,
      ChromeCompositorStateMachine_MajorState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_LayerTreeFrameSinkState kLayerTreeFrameSinkState() { return {}; }
  void set_layer_tree_frame_sink_state(::perfetto::protos::pbzero::ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState value) {
    static constexpr uint32_t field_id = FieldMetadata_LayerTreeFrameSinkState::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kEnum>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_ForcedRedrawState =
    ::protozero::proto_utils::FieldMetadata<
      5,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kEnum,
      ::perfetto::protos::pbzero::ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState,
      ChromeCompositorStateMachine_MajorState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_ForcedRedrawState kForcedRedrawState() { return {}; }
  void set_forced_redraw_state(::perfetto::protos::pbzero::ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState value) {
    static constexpr uint32_t field_id = FieldMetadata_ForcedRedrawState::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kEnum>
        ::Append(*this, field_id, value);
  }
};

class ChromeCompositorSchedulerState_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/17, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
 public:
  ChromeCompositorSchedulerState_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
  explicit ChromeCompositorSchedulerState_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
  explicit ChromeCompositorSchedulerState_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
  bool has_state_machine() const { return at<1>().valid(); }
  ::protozero::ConstBytes state_machine() const { return at<1>().as_bytes(); }
  bool has_observing_begin_frame_source() const { return at<2>().valid(); }
  bool observing_begin_frame_source() const { return at<2>().as_bool(); }
  bool has_begin_impl_frame_deadline_task() const { return at<3>().valid(); }
  bool begin_impl_frame_deadline_task() const { return at<3>().as_bool(); }
  bool has_pending_begin_frame_task() const { return at<4>().valid(); }
  bool pending_begin_frame_task() const { return at<4>().as_bool(); }
  bool has_skipped_last_frame_missed_exceeded_deadline() const { return at<5>().valid(); }
  bool skipped_last_frame_missed_exceeded_deadline() const { return at<5>().as_bool(); }
  bool has_skipped_last_frame_to_reduce_latency() const { return at<6>().valid(); }
  bool skipped_last_frame_to_reduce_latency() const { return at<6>().as_bool(); }
  bool has_inside_action() const { return at<7>().valid(); }
  int32_t inside_action() const { return at<7>().as_int32(); }
  bool has_deadline_mode() const { return at<8>().valid(); }
  int32_t deadline_mode() const { return at<8>().as_int32(); }
  bool has_deadline_us() const { return at<9>().valid(); }
  int64_t deadline_us() const { return at<9>().as_int64(); }
  bool has_deadline_scheduled_at_us() const { return at<10>().valid(); }
  int64_t deadline_scheduled_at_us() const { return at<10>().as_int64(); }
  bool has_now_us() const { return at<11>().valid(); }
  int64_t now_us() const { return at<11>().as_int64(); }
  bool has_now_to_deadline_delta_us() const { return at<12>().valid(); }
  int64_t now_to_deadline_delta_us() const { return at<12>().as_int64(); }
  bool has_now_to_deadline_scheduled_at_delta_us() const { return at<13>().valid(); }
  int64_t now_to_deadline_scheduled_at_delta_us() const { return at<13>().as_int64(); }
  bool has_begin_impl_frame_args() const { return at<14>().valid(); }
  ::protozero::ConstBytes begin_impl_frame_args() const { return at<14>().as_bytes(); }
  bool has_begin_frame_observer_state() const { return at<15>().valid(); }
  ::protozero::ConstBytes begin_frame_observer_state() const { return at<15>().as_bytes(); }
  bool has_begin_frame_source_state() const { return at<16>().valid(); }
  ::protozero::ConstBytes begin_frame_source_state() const { return at<16>().as_bytes(); }
  bool has_compositor_timing_history() const { return at<17>().valid(); }
  ::protozero::ConstBytes compositor_timing_history() const { return at<17>().as_bytes(); }
};

class ChromeCompositorSchedulerState : public ::protozero::Message {
 public:
  using Decoder = ChromeCompositorSchedulerState_Decoder;
  enum : int32_t {
    kStateMachineFieldNumber = 1,
    kObservingBeginFrameSourceFieldNumber = 2,
    kBeginImplFrameDeadlineTaskFieldNumber = 3,
    kPendingBeginFrameTaskFieldNumber = 4,
    kSkippedLastFrameMissedExceededDeadlineFieldNumber = 5,
    kSkippedLastFrameToReduceLatencyFieldNumber = 6,
    kInsideActionFieldNumber = 7,
    kDeadlineModeFieldNumber = 8,
    kDeadlineUsFieldNumber = 9,
    kDeadlineScheduledAtUsFieldNumber = 10,
    kNowUsFieldNumber = 11,
    kNowToDeadlineDeltaUsFieldNumber = 12,
    kNowToDeadlineScheduledAtDeltaUsFieldNumber = 13,
    kBeginImplFrameArgsFieldNumber = 14,
    kBeginFrameObserverStateFieldNumber = 15,
    kBeginFrameSourceStateFieldNumber = 16,
    kCompositorTimingHistoryFieldNumber = 17,
  };
  using BeginImplFrameDeadlineMode = ::perfetto::protos::pbzero::ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode;
  static const BeginImplFrameDeadlineMode DEADLINE_MODE_UNSPECIFIED = ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_UNSPECIFIED;
  static const BeginImplFrameDeadlineMode DEADLINE_MODE_NONE = ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_NONE;
  static const BeginImplFrameDeadlineMode DEADLINE_MODE_IMMEDIATE = ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_IMMEDIATE;
  static const BeginImplFrameDeadlineMode DEADLINE_MODE_REGULAR = ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_REGULAR;
  static const BeginImplFrameDeadlineMode DEADLINE_MODE_LATE = ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_LATE;
  static const BeginImplFrameDeadlineMode DEADLINE_MODE_BLOCKED = ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_BLOCKED;

  using FieldMetadata_StateMachine =
    ::protozero::proto_utils::FieldMetadata<
      1,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kMessage,
      ChromeCompositorStateMachine,
      ChromeCompositorSchedulerState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_StateMachine kStateMachine() { return {}; }
  template <typename T = ChromeCompositorStateMachine> T* set_state_machine() {
    return BeginNestedMessage<T>(1);
  }


  using FieldMetadata_ObservingBeginFrameSource =
    ::protozero::proto_utils::FieldMetadata<
      2,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kBool,
      bool,
      ChromeCompositorSchedulerState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_ObservingBeginFrameSource kObservingBeginFrameSource() { return {}; }
  void set_observing_begin_frame_source(bool value) {
    static constexpr uint32_t field_id = FieldMetadata_ObservingBeginFrameSource::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kBool>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_BeginImplFrameDeadlineTask =
    ::protozero::proto_utils::FieldMetadata<
      3,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kBool,
      bool,
      ChromeCompositorSchedulerState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_BeginImplFrameDeadlineTask kBeginImplFrameDeadlineTask() { return {}; }
  void set_begin_impl_frame_deadline_task(bool value) {
    static constexpr uint32_t field_id = FieldMetadata_BeginImplFrameDeadlineTask::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kBool>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_PendingBeginFrameTask =
    ::protozero::proto_utils::FieldMetadata<
      4,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kBool,
      bool,
      ChromeCompositorSchedulerState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_PendingBeginFrameTask kPendingBeginFrameTask() { return {}; }
  void set_pending_begin_frame_task(bool value) {
    static constexpr uint32_t field_id = FieldMetadata_PendingBeginFrameTask::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kBool>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_SkippedLastFrameMissedExceededDeadline =
    ::protozero::proto_utils::FieldMetadata<
      5,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kBool,
      bool,
      ChromeCompositorSchedulerState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_SkippedLastFrameMissedExceededDeadline kSkippedLastFrameMissedExceededDeadline() { return {}; }
  void set_skipped_last_frame_missed_exceeded_deadline(bool value) {
    static constexpr uint32_t field_id = FieldMetadata_SkippedLastFrameMissedExceededDeadline::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kBool>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_SkippedLastFrameToReduceLatency =
    ::protozero::proto_utils::FieldMetadata<
      6,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kBool,
      bool,
      ChromeCompositorSchedulerState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_SkippedLastFrameToReduceLatency kSkippedLastFrameToReduceLatency() { return {}; }
  void set_skipped_last_frame_to_reduce_latency(bool value) {
    static constexpr uint32_t field_id = FieldMetadata_SkippedLastFrameToReduceLatency::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kBool>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_InsideAction =
    ::protozero::proto_utils::FieldMetadata<
      7,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kEnum,
      ::perfetto::protos::pbzero::ChromeCompositorSchedulerAction,
      ChromeCompositorSchedulerState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_InsideAction kInsideAction() { return {}; }
  void set_inside_action(::perfetto::protos::pbzero::ChromeCompositorSchedulerAction value) {
    static constexpr uint32_t field_id = FieldMetadata_InsideAction::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kEnum>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_DeadlineMode =
    ::protozero::proto_utils::FieldMetadata<
      8,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kEnum,
      ::perfetto::protos::pbzero::ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode,
      ChromeCompositorSchedulerState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_DeadlineMode kDeadlineMode() { return {}; }
  void set_deadline_mode(::perfetto::protos::pbzero::ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode value) {
    static constexpr uint32_t field_id = FieldMetadata_DeadlineMode::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kEnum>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_DeadlineUs =
    ::protozero::proto_utils::FieldMetadata<
      9,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kInt64,
      int64_t,
      ChromeCompositorSchedulerState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_DeadlineUs kDeadlineUs() { return {}; }
  void set_deadline_us(int64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_DeadlineUs::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kInt64>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_DeadlineScheduledAtUs =
    ::protozero::proto_utils::FieldMetadata<
      10,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kInt64,
      int64_t,
      ChromeCompositorSchedulerState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_DeadlineScheduledAtUs kDeadlineScheduledAtUs() { return {}; }
  void set_deadline_scheduled_at_us(int64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_DeadlineScheduledAtUs::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kInt64>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_NowUs =
    ::protozero::proto_utils::FieldMetadata<
      11,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kInt64,
      int64_t,
      ChromeCompositorSchedulerState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_NowUs kNowUs() { return {}; }
  void set_now_us(int64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_NowUs::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kInt64>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_NowToDeadlineDeltaUs =
    ::protozero::proto_utils::FieldMetadata<
      12,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kInt64,
      int64_t,
      ChromeCompositorSchedulerState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_NowToDeadlineDeltaUs kNowToDeadlineDeltaUs() { return {}; }
  void set_now_to_deadline_delta_us(int64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_NowToDeadlineDeltaUs::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kInt64>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_NowToDeadlineScheduledAtDeltaUs =
    ::protozero::proto_utils::FieldMetadata<
      13,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kInt64,
      int64_t,
      ChromeCompositorSchedulerState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_NowToDeadlineScheduledAtDeltaUs kNowToDeadlineScheduledAtDeltaUs() { return {}; }
  void set_now_to_deadline_scheduled_at_delta_us(int64_t value) {
    static constexpr uint32_t field_id = FieldMetadata_NowToDeadlineScheduledAtDeltaUs::kFieldId;
    // Call the appropriate protozero::Message::Append(field_id, ...)
    // method based on the type of the field.
    ::protozero::internal::FieldWriter<
      ::protozero::proto_utils::ProtoSchemaType::kInt64>
        ::Append(*this, field_id, value);
  }

  using FieldMetadata_BeginImplFrameArgs =
    ::protozero::proto_utils::FieldMetadata<
      14,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kMessage,
      BeginImplFrameArgs,
      ChromeCompositorSchedulerState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_BeginImplFrameArgs kBeginImplFrameArgs() { return {}; }
  template <typename T = BeginImplFrameArgs> T* set_begin_impl_frame_args() {
    return BeginNestedMessage<T>(14);
  }


  using FieldMetadata_BeginFrameObserverState =
    ::protozero::proto_utils::FieldMetadata<
      15,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kMessage,
      BeginFrameObserverState,
      ChromeCompositorSchedulerState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_BeginFrameObserverState kBeginFrameObserverState() { return {}; }
  template <typename T = BeginFrameObserverState> T* set_begin_frame_observer_state() {
    return BeginNestedMessage<T>(15);
  }


  using FieldMetadata_BeginFrameSourceState =
    ::protozero::proto_utils::FieldMetadata<
      16,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kMessage,
      BeginFrameSourceState,
      ChromeCompositorSchedulerState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_BeginFrameSourceState kBeginFrameSourceState() { return {}; }
  template <typename T = BeginFrameSourceState> T* set_begin_frame_source_state() {
    return BeginNestedMessage<T>(16);
  }


  using FieldMetadata_CompositorTimingHistory =
    ::protozero::proto_utils::FieldMetadata<
      17,
      ::protozero::proto_utils::RepetitionType::kNotRepeated,
      ::protozero::proto_utils::ProtoSchemaType::kMessage,
      CompositorTimingHistory,
      ChromeCompositorSchedulerState>;

  // Ceci n'est pas une pipe.
  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
  // type (and users are expected to use it as such, hence kCamelCase name).
  // It is declared as a function to keep protozero bindings header-only as
  // inline constexpr variables are not available until C++17 (while inline
  // functions are).
  // TODO(altimin): Use inline variable instead after adopting C++17.  
  static constexpr FieldMetadata_CompositorTimingHistory kCompositorTimingHistory() { return {}; }
  template <typename T = CompositorTimingHistory> T* set_compositor_timing_history() {
    return BeginNestedMessage<T>(17);
  }

};

} // Namespace.
} // Namespace.
} // Namespace.
#endif  // Include guard.