components/policy/core/common/cloud/enterprise_metrics.h - platform/external/chromium_org - Git at Google

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.

 #ifndef COMPONENTS_POLICY_CORE_COMMON_CLOUD_ENTERPRISE_METRICS_H_
 #define COMPONENTS_POLICY_CORE_COMMON_CLOUD_ENTERPRISE_METRICS_H_

 #include "components/policy/policy_export.h"

 namespace policy {

 // Metrics collected for enterprise events.

 // Events related to fetching, saving and loading DM server tokens.
 // These metrics are collected both for device and user tokens.
 // This enum is used to define the buckets for an enumerated UMA histogram.
 // Hence,
 //   (a) existing enumerated constants should never be deleted or reordered, and
 //   (b) new constants should only be appended at the end of the enumeration.
 enum MetricToken {
   // A cached token was successfully loaded from disk.
   kMetricTokenLoadSucceeded = 0,
   // Reading a cached token from disk failed.
   kMetricTokenLoadFailed = 1,

   // A token fetch request was sent to the DM server.
   kMetricTokenFetchRequested = 2,
   // The request was invalid, or the HTTP request failed.
   kMetricTokenFetchRequestFailed = 3,
   // Error HTTP status received, or the DM server failed in another way.
   kMetricTokenFetchServerFailed = 4,
   // A response to the fetch request was received.
   kMetricTokenFetchResponseReceived = 5,
   // The response received was invalid. This happens when some expected data
   // was not present in the response.
   kMetricTokenFetchBadResponse = 6,
   // DM server reported that management is not supported.
   kMetricTokenFetchManagementNotSupported = 7,
   // DM server reported that the given device ID was not found.
   kMetricTokenFetchDeviceNotFound = 8,
   // DM token successfully retrieved.
   kMetricTokenFetchOK = 9,

   // Successfully cached a token to disk.
   kMetricTokenStoreSucceeded = 10,
   // Caching a token to disk failed.
   kMetricTokenStoreFailed = 11,

   // DM server reported that the device-id generated is not unique.
   kMetricTokenFetchDeviceIdConflict = 12,
   // DM server reported that the serial number we try to register is invalid.
   kMetricTokenFetchInvalidSerialNumber = 13,
   // DM server reported that the licenses for the domain have expired or been
   // exhausted.
   kMetricMissingLicenses = 14,

   kMetricTokenSize  // Must be the last.
 };

 // Events related to fetching, saving and loading user and device policies.
 // This enum is used to define the buckets for an enumerated UMA histogram.
 // Hence,
 //   (a) existing enumerated constants should never be deleted or reordered, and
 //   (b) new constants should only be appended at the end of the enumeration.
 enum MetricPolicy {
   // A cached policy was successfully loaded from disk.
   kMetricPolicyLoadSucceeded = 0,
   // Reading a cached policy from disk failed.
   kMetricPolicyLoadFailed = 1,

   // A policy fetch request was sent to the DM server.
   kMetricPolicyFetchRequested = 2,
   // The request was invalid, or the HTTP request failed.
   kMetricPolicyFetchRequestFailed = 3,
   // Error HTTP status received, or the DM server failed in another way.
   kMetricPolicyFetchServerFailed = 4,
   // Policy not found for the given user or device.
   kMetricPolicyFetchNotFound = 5,
   // DM server didn't accept the token used in the request.
   kMetricPolicyFetchInvalidToken = 6,
   // A response to the policy fetch request was received.
   kMetricPolicyFetchResponseReceived = 7,
   // The policy response message didn't contain a policy, or other data was
   // missing.
   kMetricPolicyFetchBadResponse = 8,
   // Failed to decode the policy.
   kMetricPolicyFetchInvalidPolicy = 9,
   // The device policy was rejected because its signature was invalid.
   kMetricPolicyFetchBadSignature = 10,
   // Rejected policy because its timestamp is in the future.
   kMetricPolicyFetchTimestampInFuture = 11,
   // Device policy rejected because the device is not managed.
   kMetricPolicyFetchNonEnterpriseDevice = 12,
   // The policy was provided for a username that is different from the device
   // owner, and the policy was rejected.
   kMetricPolicyFetchUserMismatch = 13,
   // The policy was rejected for another reason. Currently this can happen
   // only for device policies, when the SignedSettings fail to store or retrieve
   // a stored policy.
   kMetricPolicyFetchOtherFailed = 14,
   // The fetched policy was accepted.
   kMetricPolicyFetchOK = 15,
   // The policy just fetched didn't have any changes compared to the cached
   // policy.
   kMetricPolicyFetchNotModified = 16,

   // Successfully cached a policy to disk.
   kMetricPolicyStoreSucceeded = 17,
   // Caching a policy to disk failed.
   kMetricPolicyStoreFailed = 18,

   kMetricPolicySize  // Must be the last.
 };

 // Events related to device enrollment.
 // This enum is used to define the buckets for an enumerated UMA histogram.
 // Hence,
 //   (a) existing enumerated constants should never be deleted or reordered, and
 //   (b) new constants should only be appended at the end of the enumeration.
 enum MetricEnrollment {
   // User pressed 'Cancel' during the enrollment process.
   kMetricEnrollmentCancelled = 0,
   // User started enrollment process by submitting valid GAIA credentials.
   kMetricEnrollmentStarted = 1,
   // OAuth token fetch failed: network error.
   kMetricEnrollmentNetworkFailed = 2,
   // OAuth token fetch failed: login error.
   kMetricEnrollmentLoginFailed = 3,
   // Registration / policy fetch failed: DM server reports management not
   // supported.
   kMetricEnrollmentNotSupported = 4,
   /* kMetricEnrollmentPolicyFailed = 5 REMOVED */
   /* kMetricEnrollmentOtherFailed = 6 REMOVED */
   // Enrollment was successful.
   kMetricEnrollmentOK = 7,
   // Registration / policy fetch failed: DM server reports that the serial
   // number we try to register is not assigned to the domain used.
   kMetricEnrollmentRegisterPolicyInvalidSerial = 8,
   // Auto-enrollment started automatically after the user signed in.
   kMetricEnrollmentAutoStarted = 9,
   // Auto-enrollment failed.
   kMetricEnrollmentAutoFailed = 10,
   // Auto-enrollment was retried after having failed before.
   kMetricEnrollmentAutoRestarted = 11,
   // Auto-enrollment was canceled through the opt-out dialog.
   kMetricEnrollmentAutoCancelled = 12,
   // Auto-enrollment succeeded.
   kMetricEnrollmentAutoOK = 13,
   // Registration failed: DM server returns unknown/disallowed enrollment mode.
   kMetricEnrollmentInvalidEnrollmentMode = 14,
   // Auto-enrollment is not supported for the mode supplied by the server.  This
   // presently means trying to auto-enroll in kiosk mode.
   kMetricEnrollmentAutoEnrollmentNotSupported = 15,
   // Lockbox initialization took too long to complete.
   kMetricEnrollmentLockboxTimeoutError = 16,
   // Lockbox error at re-enrollment: domain does not match install attributes.
   kMetricEnrollmentLockDomainMismatch = 17,
   // Registration / policy fetch failed: DM server reports licenses expired or
   // exhausted.
   kMetricEnrollmentRegisterPolicyMissingLicenses = 18,
   // Failed to fetch device robot authorization code from DM Server.
   kMetricEnrollmentRobotAuthCodeFetchFailed = 19,
   // Failed to fetch device robot refresh token from GAIA.
   kMetricEnrollmentRobotRefreshTokenFetchFailed = 20,
   // Failed to persist robot account refresh token on device.
   kMetricEnrollmentRobotRefreshTokenStoreFailed = 21,
   // Registration / policy fetch failed: DM server reports administrator
   // deprovisioned the device.
   kMetricEnrollmentRegisterPolicyDeprovisioned = 22,
   // Registration / policy fetch failed: DM server reports domain mismatch.
   kMetricEnrollmentRegisterPolicyDomainMismatch = 23,
   // Enrollment has been triggered, the webui login screen has been shown.
   kMetricEnrollmentTriggered = 24,
   // The user submitted valid GAIA credentials to start the enrollment process
   // for the second (or further) time.
   kMetricEnrollmentRestarted = 25,
   // Failed to store DM token and device ID.
   kMetricEnrollmentStoreTokenAndIdFailed = 26,
   // Failed to obtain FRE state keys.
   kMetricEnrollmentNoStateKeys = 27,
   // Failed to validate policy.
   kMetricEnrollmentPolicyValidationFailed = 28,
   // Failed due to error in CloudPolicyStore.
   kMetricEnrollmentCloudPolicyStoreError = 29,
   /* kMetricEnrollmentLockBackendError = 30 REMOVED */
   // Registration / policy fetch failed: DM server reports invalid request
   // payload.
   kMetricEnrollmentRegisterPolicyPayloadInvalid = 31,
   // Registration / policy fetch failed: DM server reports device not found.
   kMetricEnrollmentRegisterPolicyDeviceNotFound = 32,
   // Registration / policy fetch failed: DM server reports DM token invalid.
   kMetricEnrollmentRegisterPolicyDMTokenInvalid = 33,
   // Registration / policy fetch failed: DM server reports activation pending.
   kMetricEnrollmentRegisterPolicyActivationPending = 34,
   // Registration / policy fetch failed: DM server reports device ID conflict.
   kMetricEnrollmentRegisterPolicyDeviceIdConflict = 35,
   // Registration / policy fetch failed: DM server can't find policy.
   kMetricEnrollmentRegisterPolicyNotFound = 36,
   // Registration / policy fetch failed: HTTP request failed.
   kMetricEnrollmentRegisterPolicyRequestFailed = 37,
   // Registration / policy fetch failed: DM server reports temporary problem.
   kMetricEnrollmentRegisterPolicyTempUnavailable = 38,
   // Registration / policy fetch failed: DM server returns non-success HTTP
   // status code.
   kMetricEnrollmentRegisterPolicyHttpError = 39,
   // Registration / policy fetch failed: can't decode DM server response.
   kMetricEnrollmentRegisterPolicyResponseInvalid = 40,
   // OAuth token fetch failed: account not signed up.
   kMetricEnrollmentAccountNotSignedUp = 41,
   // OAuth token fetch failed: account deleted.
   kMetricEnrollmentAccountDeleted = 42,
   // OAuth token fetch failed: account disabled.
   kMetricEnrollmentAccountDisabled = 43,
   // Re-enrollment pre-check failed: domain does not match install attributes.
   kMetricEnrollmentPrecheckDomainMismatch = 44,
   // Lockbox backend failed to initialize.
   kMetricEnrollmentLockBackendInvalid = 45,
   // Lockbox backend (TPM) already locked.
   kMetricEnrollmentLockAlreadyLocked = 46,
   // Lockbox failure setting attributes.
   kMetricEnrollmentLockSetError = 47,
   // Lockbox failure during locking.
   kMetricEnrollmentLockFinalizeError = 48,
   // Lockbox read back is inconsistent.
   kMetricEnrollmentLockReadbackError = 49,
 };

 // Events related to policy refresh.
 // This enum is used to define the buckets for an enumerated UMA histogram.
 // Hence,
 //   (a) existing enumerated constants should never be deleted or reordered, and
 //   (b) new constants should only be appended at the end of the enumeration.
 enum MetricPolicyRefresh {
   // A refresh occurred while the policy was not invalidated and the policy was
   // changed. Invalidations were enabled.
   METRIC_POLICY_REFRESH_CHANGED = 0,
   // A refresh occurred while the policy was not invalidated and the policy was
   // changed. Invalidations were disabled.
   METRIC_POLICY_REFRESH_CHANGED_NO_INVALIDATIONS = 1,
   // A refresh occurred while the policy was not invalidated and the policy was
   // unchanged.
   METRIC_POLICY_REFRESH_UNCHANGED = 2,
   // A refresh occurred while the policy was invalidated and the policy was
   // changed.
   METRIC_POLICY_REFRESH_INVALIDATED_CHANGED = 3,
   // A refresh occurred while the policy was invalidated and the policy was
   // unchanged.
   METRIC_POLICY_REFRESH_INVALIDATED_UNCHANGED = 4,

   METRIC_POLICY_REFRESH_SIZE  // Must be the last.
 };

 // Types of policy invalidations.
 // This enum is used to define the buckets for an enumerated UMA histogram.
 // Hence,
 //   (a) existing enumerated constants should never be deleted or reordered, and
 //   (b) new constants should only be appended at the end of the enumeration.
 enum PolicyInvalidationType {
   // The invalidation contained no payload.
   POLICY_INVALIDATION_TYPE_NO_PAYLOAD = 0,
   // A normal invalidation containing a payload.
   POLICY_INVALIDATION_TYPE_NORMAL = 1,
   // The invalidation contained no payload and was considered expired.
   POLICY_INVALIDATION_TYPE_NO_PAYLOAD_EXPIRED = 3,
   // The invalidation contained a payload and was considered expired.
   POLICY_INVALIDATION_TYPE_EXPIRED = 4,

   POLICY_INVALIDATION_TYPE_SIZE  // Must be the last.
 };

 // Names for the UMA counters. They are shared from here since the events
 // from the same enum above can be triggered in different files, and must use
 // the same UMA histogram name.
 POLICY_EXPORT extern const char kMetricToken[];
 POLICY_EXPORT extern const char kMetricPolicy[];
 POLICY_EXPORT extern const char kMetricUserPolicyRefresh[];
 POLICY_EXPORT extern const char kMetricUserPolicyInvalidations[];
 POLICY_EXPORT extern const char kMetricDevicePolicyRefresh[];
 POLICY_EXPORT extern const char kMetricDevicePolicyInvalidations[];

 }  // namespace policy

 #endif  // COMPONENTS_POLICY_CORE_COMMON_CLOUD_ENTERPRISE_METRICS_H_
	// Copyright (c) 2012 The Chromium Authors. All rights reserved.
	// Use of this source code is governed by a BSD-style license that can be
	// found in the LICENSE file.

	#ifndef COMPONENTS_POLICY_CORE_COMMON_CLOUD_ENTERPRISE_METRICS_H_
	#define COMPONENTS_POLICY_CORE_COMMON_CLOUD_ENTERPRISE_METRICS_H_

	#include "components/policy/policy_export.h"

	namespace policy {

	// Metrics collected for enterprise events.

	// Events related to fetching, saving and loading DM server tokens.
	// These metrics are collected both for device and user tokens.
	// This enum is used to define the buckets for an enumerated UMA histogram.
	// Hence,
	// (a) existing enumerated constants should never be deleted or reordered, and
	// (b) new constants should only be appended at the end of the enumeration.
	enum MetricToken {
	// A cached token was successfully loaded from disk.
	kMetricTokenLoadSucceeded = 0,
	// Reading a cached token from disk failed.
	kMetricTokenLoadFailed = 1,

	// A token fetch request was sent to the DM server.
	kMetricTokenFetchRequested = 2,
	// The request was invalid, or the HTTP request failed.
	kMetricTokenFetchRequestFailed = 3,
	// Error HTTP status received, or the DM server failed in another way.
	kMetricTokenFetchServerFailed = 4,
	// A response to the fetch request was received.
	kMetricTokenFetchResponseReceived = 5,
	// The response received was invalid. This happens when some expected data
	// was not present in the response.
	kMetricTokenFetchBadResponse = 6,
	// DM server reported that management is not supported.
	kMetricTokenFetchManagementNotSupported = 7,
	// DM server reported that the given device ID was not found.
	kMetricTokenFetchDeviceNotFound = 8,
	// DM token successfully retrieved.
	kMetricTokenFetchOK = 9,

	// Successfully cached a token to disk.
	kMetricTokenStoreSucceeded = 10,
	// Caching a token to disk failed.
	kMetricTokenStoreFailed = 11,

	// DM server reported that the device-id generated is not unique.
	kMetricTokenFetchDeviceIdConflict = 12,
	// DM server reported that the serial number we try to register is invalid.
	kMetricTokenFetchInvalidSerialNumber = 13,
	// DM server reported that the licenses for the domain have expired or been
	// exhausted.
	kMetricMissingLicenses = 14,

	kMetricTokenSize // Must be the last.
	};

	// Events related to fetching, saving and loading user and device policies.
	// This enum is used to define the buckets for an enumerated UMA histogram.
	// Hence,
	// (a) existing enumerated constants should never be deleted or reordered, and
	// (b) new constants should only be appended at the end of the enumeration.
	enum MetricPolicy {
	// A cached policy was successfully loaded from disk.
	kMetricPolicyLoadSucceeded = 0,
	// Reading a cached policy from disk failed.
	kMetricPolicyLoadFailed = 1,

	// A policy fetch request was sent to the DM server.
	kMetricPolicyFetchRequested = 2,
	// The request was invalid, or the HTTP request failed.
	kMetricPolicyFetchRequestFailed = 3,
	// Error HTTP status received, or the DM server failed in another way.
	kMetricPolicyFetchServerFailed = 4,
	// Policy not found for the given user or device.
	kMetricPolicyFetchNotFound = 5,
	// DM server didn't accept the token used in the request.
	kMetricPolicyFetchInvalidToken = 6,
	// A response to the policy fetch request was received.
	kMetricPolicyFetchResponseReceived = 7,
	// The policy response message didn't contain a policy, or other data was
	// missing.
	kMetricPolicyFetchBadResponse = 8,
	// Failed to decode the policy.
	kMetricPolicyFetchInvalidPolicy = 9,
	// The device policy was rejected because its signature was invalid.
	kMetricPolicyFetchBadSignature = 10,
	// Rejected policy because its timestamp is in the future.
	kMetricPolicyFetchTimestampInFuture = 11,
	// Device policy rejected because the device is not managed.
	kMetricPolicyFetchNonEnterpriseDevice = 12,
	// The policy was provided for a username that is different from the device
	// owner, and the policy was rejected.
	kMetricPolicyFetchUserMismatch = 13,
	// The policy was rejected for another reason. Currently this can happen
	// only for device policies, when the SignedSettings fail to store or retrieve
	// a stored policy.
	kMetricPolicyFetchOtherFailed = 14,
	// The fetched policy was accepted.
	kMetricPolicyFetchOK = 15,
	// The policy just fetched didn't have any changes compared to the cached
	// policy.
	kMetricPolicyFetchNotModified = 16,

	// Successfully cached a policy to disk.
	kMetricPolicyStoreSucceeded = 17,
	// Caching a policy to disk failed.
	kMetricPolicyStoreFailed = 18,

	kMetricPolicySize // Must be the last.
	};

	// Events related to device enrollment.
	// This enum is used to define the buckets for an enumerated UMA histogram.
	// Hence,
	// (a) existing enumerated constants should never be deleted or reordered, and
	// (b) new constants should only be appended at the end of the enumeration.
	enum MetricEnrollment {
	// User pressed 'Cancel' during the enrollment process.
	kMetricEnrollmentCancelled = 0,
	// User started enrollment process by submitting valid GAIA credentials.
	kMetricEnrollmentStarted = 1,
	// OAuth token fetch failed: network error.
	kMetricEnrollmentNetworkFailed = 2,
	// OAuth token fetch failed: login error.
	kMetricEnrollmentLoginFailed = 3,
	// Registration / policy fetch failed: DM server reports management not
	// supported.
	kMetricEnrollmentNotSupported = 4,
	/* kMetricEnrollmentPolicyFailed = 5 REMOVED */
	/* kMetricEnrollmentOtherFailed = 6 REMOVED */
	// Enrollment was successful.
	kMetricEnrollmentOK = 7,
	// Registration / policy fetch failed: DM server reports that the serial
	// number we try to register is not assigned to the domain used.
	kMetricEnrollmentRegisterPolicyInvalidSerial = 8,
	// Auto-enrollment started automatically after the user signed in.
	kMetricEnrollmentAutoStarted = 9,
	// Auto-enrollment failed.
	kMetricEnrollmentAutoFailed = 10,
	// Auto-enrollment was retried after having failed before.
	kMetricEnrollmentAutoRestarted = 11,
	// Auto-enrollment was canceled through the opt-out dialog.
	kMetricEnrollmentAutoCancelled = 12,
	// Auto-enrollment succeeded.
	kMetricEnrollmentAutoOK = 13,
	// Registration failed: DM server returns unknown/disallowed enrollment mode.
	kMetricEnrollmentInvalidEnrollmentMode = 14,
	// Auto-enrollment is not supported for the mode supplied by the server. This
	// presently means trying to auto-enroll in kiosk mode.
	kMetricEnrollmentAutoEnrollmentNotSupported = 15,
	// Lockbox initialization took too long to complete.
	kMetricEnrollmentLockboxTimeoutError = 16,
	// Lockbox error at re-enrollment: domain does not match install attributes.
	kMetricEnrollmentLockDomainMismatch = 17,
	// Registration / policy fetch failed: DM server reports licenses expired or
	// exhausted.
	kMetricEnrollmentRegisterPolicyMissingLicenses = 18,
	// Failed to fetch device robot authorization code from DM Server.
	kMetricEnrollmentRobotAuthCodeFetchFailed = 19,
	// Failed to fetch device robot refresh token from GAIA.
	kMetricEnrollmentRobotRefreshTokenFetchFailed = 20,
	// Failed to persist robot account refresh token on device.
	kMetricEnrollmentRobotRefreshTokenStoreFailed = 21,
	// Registration / policy fetch failed: DM server reports administrator
	// deprovisioned the device.
	kMetricEnrollmentRegisterPolicyDeprovisioned = 22,
	// Registration / policy fetch failed: DM server reports domain mismatch.
	kMetricEnrollmentRegisterPolicyDomainMismatch = 23,
	// Enrollment has been triggered, the webui login screen has been shown.
	kMetricEnrollmentTriggered = 24,
	// The user submitted valid GAIA credentials to start the enrollment process
	// for the second (or further) time.
	kMetricEnrollmentRestarted = 25,
	// Failed to store DM token and device ID.
	kMetricEnrollmentStoreTokenAndIdFailed = 26,
	// Failed to obtain FRE state keys.
	kMetricEnrollmentNoStateKeys = 27,
	// Failed to validate policy.
	kMetricEnrollmentPolicyValidationFailed = 28,
	// Failed due to error in CloudPolicyStore.
	kMetricEnrollmentCloudPolicyStoreError = 29,
	/* kMetricEnrollmentLockBackendError = 30 REMOVED */
	// Registration / policy fetch failed: DM server reports invalid request
	// payload.
	kMetricEnrollmentRegisterPolicyPayloadInvalid = 31,
	// Registration / policy fetch failed: DM server reports device not found.
	kMetricEnrollmentRegisterPolicyDeviceNotFound = 32,
	// Registration / policy fetch failed: DM server reports DM token invalid.
	kMetricEnrollmentRegisterPolicyDMTokenInvalid = 33,
	// Registration / policy fetch failed: DM server reports activation pending.
	kMetricEnrollmentRegisterPolicyActivationPending = 34,
	// Registration / policy fetch failed: DM server reports device ID conflict.
	kMetricEnrollmentRegisterPolicyDeviceIdConflict = 35,
	// Registration / policy fetch failed: DM server can't find policy.
	kMetricEnrollmentRegisterPolicyNotFound = 36,
	// Registration / policy fetch failed: HTTP request failed.
	kMetricEnrollmentRegisterPolicyRequestFailed = 37,
	// Registration / policy fetch failed: DM server reports temporary problem.
	kMetricEnrollmentRegisterPolicyTempUnavailable = 38,
	// Registration / policy fetch failed: DM server returns non-success HTTP
	// status code.
	kMetricEnrollmentRegisterPolicyHttpError = 39,
	// Registration / policy fetch failed: can't decode DM server response.
	kMetricEnrollmentRegisterPolicyResponseInvalid = 40,
	// OAuth token fetch failed: account not signed up.
	kMetricEnrollmentAccountNotSignedUp = 41,
	// OAuth token fetch failed: account deleted.
	kMetricEnrollmentAccountDeleted = 42,
	// OAuth token fetch failed: account disabled.
	kMetricEnrollmentAccountDisabled = 43,
	// Re-enrollment pre-check failed: domain does not match install attributes.
	kMetricEnrollmentPrecheckDomainMismatch = 44,
	// Lockbox backend failed to initialize.
	kMetricEnrollmentLockBackendInvalid = 45,
	// Lockbox backend (TPM) already locked.
	kMetricEnrollmentLockAlreadyLocked = 46,
	// Lockbox failure setting attributes.
	kMetricEnrollmentLockSetError = 47,
	// Lockbox failure during locking.
	kMetricEnrollmentLockFinalizeError = 48,
	// Lockbox read back is inconsistent.
	kMetricEnrollmentLockReadbackError = 49,
	};

	// Events related to policy refresh.
	// This enum is used to define the buckets for an enumerated UMA histogram.
	// Hence,
	// (a) existing enumerated constants should never be deleted or reordered, and
	// (b) new constants should only be appended at the end of the enumeration.
	enum MetricPolicyRefresh {
	// A refresh occurred while the policy was not invalidated and the policy was
	// changed. Invalidations were enabled.
	METRIC_POLICY_REFRESH_CHANGED = 0,
	// A refresh occurred while the policy was not invalidated and the policy was
	// changed. Invalidations were disabled.
	METRIC_POLICY_REFRESH_CHANGED_NO_INVALIDATIONS = 1,
	// A refresh occurred while the policy was not invalidated and the policy was
	// unchanged.
	METRIC_POLICY_REFRESH_UNCHANGED = 2,
	// A refresh occurred while the policy was invalidated and the policy was
	// changed.
	METRIC_POLICY_REFRESH_INVALIDATED_CHANGED = 3,
	// A refresh occurred while the policy was invalidated and the policy was
	// unchanged.
	METRIC_POLICY_REFRESH_INVALIDATED_UNCHANGED = 4,

	METRIC_POLICY_REFRESH_SIZE // Must be the last.
	};

	// Types of policy invalidations.
	// This enum is used to define the buckets for an enumerated UMA histogram.
	// Hence,
	// (a) existing enumerated constants should never be deleted or reordered, and
	// (b) new constants should only be appended at the end of the enumeration.
	enum PolicyInvalidationType {
	// The invalidation contained no payload.
	POLICY_INVALIDATION_TYPE_NO_PAYLOAD = 0,
	// A normal invalidation containing a payload.
	POLICY_INVALIDATION_TYPE_NORMAL = 1,
	// The invalidation contained no payload and was considered expired.
	POLICY_INVALIDATION_TYPE_NO_PAYLOAD_EXPIRED = 3,
	// The invalidation contained a payload and was considered expired.
	POLICY_INVALIDATION_TYPE_EXPIRED = 4,

	POLICY_INVALIDATION_TYPE_SIZE // Must be the last.
	};

	// Names for the UMA counters. They are shared from here since the events
	// from the same enum above can be triggered in different files, and must use
	// the same UMA histogram name.
	POLICY_EXPORT extern const char kMetricToken[];
	POLICY_EXPORT extern const char kMetricPolicy[];
	POLICY_EXPORT extern const char kMetricUserPolicyRefresh[];
	POLICY_EXPORT extern const char kMetricUserPolicyInvalidations[];
	POLICY_EXPORT extern const char kMetricDevicePolicyRefresh[];
	POLICY_EXPORT extern const char kMetricDevicePolicyInvalidations[];

	} // namespace policy

	#endif // COMPONENTS_POLICY_CORE_COMMON_CLOUD_ENTERPRISE_METRICS_H_