cc/resources/tile_manager_perftest.cc - platform/external/chromium_org - Git at Google

 // Copyright 2013 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.

 #include "base/time/time.h"
 #include "cc/debug/lap_timer.h"
 #include "cc/resources/tile.h"
 #include "cc/resources/tile_priority.h"
 #include "cc/test/fake_impl_proxy.h"
 #include "cc/test/fake_layer_tree_host_impl.h"
 #include "cc/test/fake_output_surface.h"
 #include "cc/test/fake_output_surface_client.h"
 #include "cc/test/fake_picture_layer_impl.h"
 #include "cc/test/fake_picture_pile_impl.h"
 #include "cc/test/fake_tile_manager.h"
 #include "cc/test/fake_tile_manager_client.h"
 #include "cc/test/impl_side_painting_settings.h"
 #include "cc/test/test_shared_bitmap_manager.h"
 #include "cc/test/test_tile_priorities.h"
 #include "cc/trees/layer_tree_impl.h"

 #include "testing/gtest/include/gtest/gtest.h"
 #include "testing/perf/perf_test.h"

 namespace cc {

 namespace {

 static const int kTimeLimitMillis = 2000;
 static const int kWarmupRuns = 5;
 static const int kTimeCheckInterval = 10;

 class FakeRasterizerImpl : public Rasterizer, public RasterizerTaskClient {
  public:
   // Overridden from Rasterizer:
   virtual void SetClient(RasterizerClient* client) OVERRIDE {}
   virtual void Shutdown() OVERRIDE {}
   virtual void ScheduleTasks(RasterTaskQueue* queue) OVERRIDE {
     for (RasterTaskQueue::Item::Vector::const_iterator it =
              queue->items.begin();
          it != queue->items.end();
          ++it) {
       RasterTask* task = it->task;

       task->WillSchedule();
       task->ScheduleOnOriginThread(this);
       task->DidSchedule();

       completed_tasks_.push_back(task);
     }
   }
   virtual void CheckForCompletedTasks() OVERRIDE {
     for (RasterTask::Vector::iterator it = completed_tasks_.begin();
          it != completed_tasks_.end();
          ++it) {
       RasterTask* task = it->get();

       task->WillComplete();
       task->CompleteOnOriginThread(this);
       task->DidComplete();

       task->RunReplyOnOriginThread();
     }
     completed_tasks_.clear();
   }

   // Overridden from RasterizerTaskClient:
   virtual SkCanvas* AcquireCanvasForRaster(RasterTask* task) OVERRIDE {
     return NULL;
   }
   virtual void ReleaseCanvasForRaster(RasterTask* task) OVERRIDE {}

  private:
   RasterTask::Vector completed_tasks_;
 };
 base::LazyInstance<FakeRasterizerImpl> g_fake_rasterizer =
     LAZY_INSTANCE_INITIALIZER;

 class TileManagerPerfTest : public testing::Test {
  public:
   TileManagerPerfTest()
       : memory_limit_policy_(ALLOW_ANYTHING),
         max_tiles_(10000),
         id_(7),
         proxy_(base::MessageLoopProxy::current()),
         host_impl_(ImplSidePaintingSettings(10000),
                    &proxy_,
                    &shared_bitmap_manager_),
         timer_(kWarmupRuns,
                base::TimeDelta::FromMilliseconds(kTimeLimitMillis),
                kTimeCheckInterval) {}

   void SetTreePriority(TreePriority tree_priority) {
     GlobalStateThatImpactsTilePriority state;
     gfx::Size tile_size(256, 256);

     state.soft_memory_limit_in_bytes = 100 * 1000 * 1000;
     state.num_resources_limit = max_tiles_;
     state.hard_memory_limit_in_bytes = state.soft_memory_limit_in_bytes * 2;
     state.memory_limit_policy = memory_limit_policy_;
     state.tree_priority = tree_priority;

     global_state_ = state;
     host_impl_.resource_pool()->SetResourceUsageLimits(
         state.soft_memory_limit_in_bytes, 0, state.num_resources_limit);
     host_impl_.tile_manager()->SetGlobalStateForTesting(state);
   }

   virtual void SetUp() OVERRIDE {
     picture_pile_ = FakePicturePileImpl::CreateInfiniteFilledPile();
     InitializeRenderer();
     SetTreePriority(SAME_PRIORITY_FOR_BOTH_TREES);
   }

   virtual void InitializeRenderer() {
     host_impl_.InitializeRenderer(
         FakeOutputSurface::Create3d().PassAs<OutputSurface>());
     tile_manager()->SetRasterizerForTesting(g_fake_rasterizer.Pointer());
   }

   void SetupDefaultTrees(const gfx::Size& layer_bounds) {
     gfx::Size tile_size(100, 100);

     scoped_refptr<FakePicturePileImpl> pending_pile =
         FakePicturePileImpl::CreateFilledPile(tile_size, layer_bounds);
     scoped_refptr<FakePicturePileImpl> active_pile =
         FakePicturePileImpl::CreateFilledPile(tile_size, layer_bounds);

     SetupTrees(pending_pile, active_pile);
   }

   void ActivateTree() {
     host_impl_.ActivatePendingTree();
     CHECK(!host_impl_.pending_tree());
     pending_root_layer_ = NULL;
     active_root_layer_ = static_cast<FakePictureLayerImpl*>(
         host_impl_.active_tree()->LayerById(id_));
   }

   void SetupDefaultTreesWithFixedTileSize(const gfx::Size& layer_bounds,
                                           const gfx::Size& tile_size) {
     SetupDefaultTrees(layer_bounds);
     pending_root_layer_->set_fixed_tile_size(tile_size);
     active_root_layer_->set_fixed_tile_size(tile_size);
   }

   void SetupTrees(scoped_refptr<PicturePileImpl> pending_pile,
                   scoped_refptr<PicturePileImpl> active_pile) {
     SetupPendingTree(active_pile);
     ActivateTree();
     SetupPendingTree(pending_pile);
   }

   void SetupPendingTree(scoped_refptr<PicturePileImpl> pile) {
     host_impl_.CreatePendingTree();
     LayerTreeImpl* pending_tree = host_impl_.pending_tree();
     // Clear recycled tree.
     pending_tree->DetachLayerTree();

     scoped_ptr<FakePictureLayerImpl> pending_layer =
         FakePictureLayerImpl::CreateWithPile(pending_tree, id_, pile);
     pending_layer->SetDrawsContent(true);
     pending_tree->SetRootLayer(pending_layer.PassAs<LayerImpl>());

     pending_root_layer_ = static_cast<FakePictureLayerImpl*>(
         host_impl_.pending_tree()->LayerById(id_));
     pending_root_layer_->DoPostCommitInitializationIfNeeded();
   }

   void CreateHighLowResAndSetAllTilesVisible() {
     // Active layer must get updated first so pending layer can share from it.
     active_root_layer_->CreateDefaultTilingsAndTiles();
     active_root_layer_->SetAllTilesVisible();
     pending_root_layer_->CreateDefaultTilingsAndTiles();
     pending_root_layer_->SetAllTilesVisible();
   }

   void RunRasterIteratorTest(const std::string& test_name,
                              unsigned tile_count) {
     timer_.Reset();
     do {
       int count = tile_count;
       for (TileManager::RasterTileIterator it(tile_manager(),
                                               SAME_PRIORITY_FOR_BOTH_TREES);
            it && count;
            ++it) {
         --count;
       }
       ASSERT_EQ(0, count);
       timer_.NextLap();
     } while (!timer_.HasTimeLimitExpired());

     perf_test::PrintResult("tile_manager_raster_tile_iterator",
                            "",
                            test_name,
                            timer_.LapsPerSecond(),
                            "runs/s",
                            true);
   }

   std::vector<LayerImpl*> CreateLayers(int layer_count,
                                        int tiles_per_layer_count) {
     // Compute the width/height required for high res to get
     // tiles_per_layer_count tiles.
     float width = std::sqrt(static_cast<float>(tiles_per_layer_count));
     float height = tiles_per_layer_count / width;

     // Adjust the width and height to account for the fact that tiles
     // are bigger than 1x1. Also, account for the fact that that we
     // will be creating one high res and one low res tiling. That is,
     // width and height should be smaller by sqrt(1 + low_res_scale).
     // This gives us _approximately_ correct counts.
     width *= settings_.default_tile_size.width() /
              std::sqrt(1 + settings_.low_res_contents_scale_factor);
     height *= settings_.default_tile_size.height() /
               std::sqrt(1 + settings_.low_res_contents_scale_factor);

     // Ensure that we start with blank trees and no tiles.
     host_impl_.ResetTreesForTesting();
     tile_manager()->CleanUpReleasedTilesForTesting();

     gfx::Size layer_bounds(width, height);
     gfx::Size viewport(width / 5, height / 5);
     host_impl_.SetViewportSize(viewport);
     SetupDefaultTreesWithFixedTileSize(layer_bounds,
                                        settings_.default_tile_size);

     active_root_layer_->CreateDefaultTilingsAndTiles();
     pending_root_layer_->CreateDefaultTilingsAndTiles();

     std::vector<LayerImpl*> layers;

     // Pending layer counts as one layer.
     layers.push_back(pending_root_layer_);
     int next_id = id_ + 1;

     // Create the rest of the layers as children of the root layer.
     while (static_cast<int>(layers.size()) < layer_count) {
       scoped_ptr<FakePictureLayerImpl> layer =
           FakePictureLayerImpl::CreateWithPile(
               host_impl_.pending_tree(), next_id, picture_pile_);
       layer->SetBounds(layer_bounds);
       layers.push_back(layer.get());
       pending_root_layer_->AddChild(layer.PassAs<LayerImpl>());

       FakePictureLayerImpl* fake_layer =
           static_cast<FakePictureLayerImpl*>(layers.back());

       fake_layer->SetDrawsContent(true);
       fake_layer->DoPostCommitInitializationIfNeeded();
       fake_layer->CreateDefaultTilingsAndTiles();
       ++next_id;
     }

     return layers;
   }

   GlobalStateThatImpactsTilePriority GlobalStateForTest() {
     GlobalStateThatImpactsTilePriority state;
     gfx::Size tile_size = settings_.default_tile_size;
     state.soft_memory_limit_in_bytes =
         10000u * 4u *
         static_cast<size_t>(tile_size.width() * tile_size.height());
     state.hard_memory_limit_in_bytes = state.soft_memory_limit_in_bytes;
     state.num_resources_limit = 10000;
     state.memory_limit_policy = ALLOW_ANYTHING;
     state.tree_priority = SMOOTHNESS_TAKES_PRIORITY;
     return state;
   }

   void RunManageTilesTest(const std::string& test_name,
                           int layer_count,
                           int approximate_tile_count_per_layer) {
     std::vector<LayerImpl*> layers =
         CreateLayers(layer_count, approximate_tile_count_per_layer);
     timer_.Reset();
     do {
       host_impl_.UpdateCurrentFrameTime();
       for (unsigned i = 0; i < layers.size(); ++i)
         layers[i]->UpdateTiles();

       GlobalStateThatImpactsTilePriority global_state(GlobalStateForTest());
       tile_manager()->ManageTiles(global_state);
       tile_manager()->UpdateVisibleTiles();
       timer_.NextLap();
       host_impl_.ResetCurrentFrameTimeForNextFrame();
     } while (!timer_.HasTimeLimitExpired());

     perf_test::PrintResult(
         "manage_tiles", "", test_name, timer_.LapsPerSecond(), "runs/s", true);
   }

   TileManager* tile_manager() { return host_impl_.tile_manager(); }

  protected:
   GlobalStateThatImpactsTilePriority global_state_;

   TestSharedBitmapManager shared_bitmap_manager_;
   TileMemoryLimitPolicy memory_limit_policy_;
   int max_tiles_;
   int id_;
   FakeImplProxy proxy_;
   FakeLayerTreeHostImpl host_impl_;
   FakePictureLayerImpl* pending_root_layer_;
   FakePictureLayerImpl* active_root_layer_;
   LapTimer timer_;
   scoped_refptr<FakePicturePileImpl> picture_pile_;
   LayerTreeSettings settings_;
 };

 TEST_F(TileManagerPerfTest, ManageTiles) {
   RunManageTilesTest("1_100", 1, 100);
   RunManageTilesTest("1_500", 1, 500);
   RunManageTilesTest("1_1000", 1, 1000);
   RunManageTilesTest("5_100", 5, 100);
   RunManageTilesTest("5_500", 5, 500);
   RunManageTilesTest("5_1000", 5, 1000);
   RunManageTilesTest("10_100", 10, 100);
   RunManageTilesTest("10_500", 10, 500);
   RunManageTilesTest("10_1000", 10, 1000);
   RunManageTilesTest("100_100", 100, 100);
   RunManageTilesTest("100_500", 100, 500);
   RunManageTilesTest("100_1000", 100, 1000);
 }

 TEST_F(TileManagerPerfTest, RasterTileIterator) {
   SetupDefaultTrees(gfx::Size(10000, 10000));
   active_root_layer_->CreateDefaultTilingsAndTiles();
   pending_root_layer_->CreateDefaultTilingsAndTiles();

   RunRasterIteratorTest("2_16", 16);
   RunRasterIteratorTest("2_32", 32);
   RunRasterIteratorTest("2_64", 64);
   RunRasterIteratorTest("2_128", 128);
 }

 }  // namespace

 }  // namespace cc
	// Copyright 2013 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.

	#include "base/time/time.h"
	#include "cc/debug/lap_timer.h"
	#include "cc/resources/tile.h"
	#include "cc/resources/tile_priority.h"
	#include "cc/test/fake_impl_proxy.h"
	#include "cc/test/fake_layer_tree_host_impl.h"
	#include "cc/test/fake_output_surface.h"
	#include "cc/test/fake_output_surface_client.h"
	#include "cc/test/fake_picture_layer_impl.h"
	#include "cc/test/fake_picture_pile_impl.h"
	#include "cc/test/fake_tile_manager.h"
	#include "cc/test/fake_tile_manager_client.h"
	#include "cc/test/impl_side_painting_settings.h"
	#include "cc/test/test_shared_bitmap_manager.h"
	#include "cc/test/test_tile_priorities.h"
	#include "cc/trees/layer_tree_impl.h"

	#include "testing/gtest/include/gtest/gtest.h"
	#include "testing/perf/perf_test.h"

	namespace cc {

	namespace {

	static const int kTimeLimitMillis = 2000;
	static const int kWarmupRuns = 5;
	static const int kTimeCheckInterval = 10;

	class FakeRasterizerImpl : public Rasterizer, public RasterizerTaskClient {
	public:
	// Overridden from Rasterizer:
	virtual void SetClient(RasterizerClient* client) OVERRIDE {}
	virtual void Shutdown() OVERRIDE {}
	virtual void ScheduleTasks(RasterTaskQueue* queue) OVERRIDE {
	for (RasterTaskQueue::Item::Vector::const_iterator it =
	queue->items.begin();
	it != queue->items.end();
	++it) {
	RasterTask* task = it->task;

	task->WillSchedule();
	task->ScheduleOnOriginThread(this);
	task->DidSchedule();

	completed_tasks_.push_back(task);
	}
	}
	virtual void CheckForCompletedTasks() OVERRIDE {
	for (RasterTask::Vector::iterator it = completed_tasks_.begin();
	it != completed_tasks_.end();
	++it) {
	RasterTask* task = it->get();

	task->WillComplete();
	task->CompleteOnOriginThread(this);
	task->DidComplete();

	task->RunReplyOnOriginThread();
	}
	completed_tasks_.clear();
	}

	// Overridden from RasterizerTaskClient:
	virtual SkCanvas* AcquireCanvasForRaster(RasterTask* task) OVERRIDE {
	return NULL;
	}
	virtual void ReleaseCanvasForRaster(RasterTask* task) OVERRIDE {}

	private:
	RasterTask::Vector completed_tasks_;
	};
	base::LazyInstance<FakeRasterizerImpl> g_fake_rasterizer =
	LAZY_INSTANCE_INITIALIZER;

	class TileManagerPerfTest : public testing::Test {
	public:
	TileManagerPerfTest()
	: memory_limit_policy_(ALLOW_ANYTHING),
	max_tiles_(10000),
	id_(7),
	proxy_(base::MessageLoopProxy::current()),
	host_impl_(ImplSidePaintingSettings(10000),
	&proxy_,
	&shared_bitmap_manager_),
	timer_(kWarmupRuns,
	base::TimeDelta::FromMilliseconds(kTimeLimitMillis),
	kTimeCheckInterval) {}

	void SetTreePriority(TreePriority tree_priority) {
	GlobalStateThatImpactsTilePriority state;
	gfx::Size tile_size(256, 256);

	state.soft_memory_limit_in_bytes = 100 * 1000 * 1000;
	state.num_resources_limit = max_tiles_;
	state.hard_memory_limit_in_bytes = state.soft_memory_limit_in_bytes * 2;
	state.memory_limit_policy = memory_limit_policy_;
	state.tree_priority = tree_priority;

	global_state_ = state;
	host_impl_.resource_pool()->SetResourceUsageLimits(
	state.soft_memory_limit_in_bytes, 0, state.num_resources_limit);
	host_impl_.tile_manager()->SetGlobalStateForTesting(state);
	}

	virtual void SetUp() OVERRIDE {
	picture_pile_ = FakePicturePileImpl::CreateInfiniteFilledPile();
	InitializeRenderer();
	SetTreePriority(SAME_PRIORITY_FOR_BOTH_TREES);
	}

	virtual void InitializeRenderer() {
	host_impl_.InitializeRenderer(
	FakeOutputSurface::Create3d().PassAs<OutputSurface>());
	tile_manager()->SetRasterizerForTesting(g_fake_rasterizer.Pointer());
	}

	void SetupDefaultTrees(const gfx::Size& layer_bounds) {
	gfx::Size tile_size(100, 100);

	scoped_refptr<FakePicturePileImpl> pending_pile =
	FakePicturePileImpl::CreateFilledPile(tile_size, layer_bounds);
	scoped_refptr<FakePicturePileImpl> active_pile =
	FakePicturePileImpl::CreateFilledPile(tile_size, layer_bounds);

	SetupTrees(pending_pile, active_pile);
	}

	void ActivateTree() {
	host_impl_.ActivatePendingTree();
	CHECK(!host_impl_.pending_tree());
	pending_root_layer_ = NULL;
	active_root_layer_ = static_cast<FakePictureLayerImpl*>(
	host_impl_.active_tree()->LayerById(id_));
	}

	void SetupDefaultTreesWithFixedTileSize(const gfx::Size& layer_bounds,
	const gfx::Size& tile_size) {
	SetupDefaultTrees(layer_bounds);
	pending_root_layer_->set_fixed_tile_size(tile_size);
	active_root_layer_->set_fixed_tile_size(tile_size);
	}

	void SetupTrees(scoped_refptr<PicturePileImpl> pending_pile,
	scoped_refptr<PicturePileImpl> active_pile) {
	SetupPendingTree(active_pile);
	ActivateTree();
	SetupPendingTree(pending_pile);
	}

	void SetupPendingTree(scoped_refptr<PicturePileImpl> pile) {
	host_impl_.CreatePendingTree();
	LayerTreeImpl* pending_tree = host_impl_.pending_tree();
	// Clear recycled tree.
	pending_tree->DetachLayerTree();

	scoped_ptr<FakePictureLayerImpl> pending_layer =
	FakePictureLayerImpl::CreateWithPile(pending_tree, id_, pile);
	pending_layer->SetDrawsContent(true);
	pending_tree->SetRootLayer(pending_layer.PassAs<LayerImpl>());

	pending_root_layer_ = static_cast<FakePictureLayerImpl*>(
	host_impl_.pending_tree()->LayerById(id_));
	pending_root_layer_->DoPostCommitInitializationIfNeeded();
	}

	void CreateHighLowResAndSetAllTilesVisible() {
	// Active layer must get updated first so pending layer can share from it.
	active_root_layer_->CreateDefaultTilingsAndTiles();
	active_root_layer_->SetAllTilesVisible();
	pending_root_layer_->CreateDefaultTilingsAndTiles();
	pending_root_layer_->SetAllTilesVisible();
	}

	void RunRasterIteratorTest(const std::string& test_name,
	unsigned tile_count) {
	timer_.Reset();
	do {
	int count = tile_count;
	for (TileManager::RasterTileIterator it(tile_manager(),
	SAME_PRIORITY_FOR_BOTH_TREES);
	it && count;
	++it) {
	--count;
	}
	ASSERT_EQ(0, count);
	timer_.NextLap();
	} while (!timer_.HasTimeLimitExpired());

	perf_test::PrintResult("tile_manager_raster_tile_iterator",
	"",
	test_name,
	timer_.LapsPerSecond(),
	"runs/s",
	true);
	}

	std::vector<LayerImpl*> CreateLayers(int layer_count,
	int tiles_per_layer_count) {
	// Compute the width/height required for high res to get
	// tiles_per_layer_count tiles.
	float width = std::sqrt(static_cast<float>(tiles_per_layer_count));
	float height = tiles_per_layer_count / width;

	// Adjust the width and height to account for the fact that tiles
	// are bigger than 1x1. Also, account for the fact that that we
	// will be creating one high res and one low res tiling. That is,
	// width and height should be smaller by sqrt(1 + low_res_scale).
	// This gives us _approximately_ correct counts.
	width *= settings_.default_tile_size.width() /
	std::sqrt(1 + settings_.low_res_contents_scale_factor);
	height *= settings_.default_tile_size.height() /
	std::sqrt(1 + settings_.low_res_contents_scale_factor);

	// Ensure that we start with blank trees and no tiles.
	host_impl_.ResetTreesForTesting();
	tile_manager()->CleanUpReleasedTilesForTesting();

	gfx::Size layer_bounds(width, height);
	gfx::Size viewport(width / 5, height / 5);
	host_impl_.SetViewportSize(viewport);
	SetupDefaultTreesWithFixedTileSize(layer_bounds,
	settings_.default_tile_size);

	active_root_layer_->CreateDefaultTilingsAndTiles();
	pending_root_layer_->CreateDefaultTilingsAndTiles();

	std::vector<LayerImpl*> layers;

	// Pending layer counts as one layer.
	layers.push_back(pending_root_layer_);
	int next_id = id_ + 1;

	// Create the rest of the layers as children of the root layer.
	while (static_cast<int>(layers.size()) < layer_count) {
	scoped_ptr<FakePictureLayerImpl> layer =
	FakePictureLayerImpl::CreateWithPile(
	host_impl_.pending_tree(), next_id, picture_pile_);
	layer->SetBounds(layer_bounds);
	layers.push_back(layer.get());
	pending_root_layer_->AddChild(layer.PassAs<LayerImpl>());

	FakePictureLayerImpl* fake_layer =
	static_cast<FakePictureLayerImpl*>(layers.back());

	fake_layer->SetDrawsContent(true);
	fake_layer->DoPostCommitInitializationIfNeeded();
	fake_layer->CreateDefaultTilingsAndTiles();
	++next_id;
	}

	return layers;
	}

	GlobalStateThatImpactsTilePriority GlobalStateForTest() {
	GlobalStateThatImpactsTilePriority state;
	gfx::Size tile_size = settings_.default_tile_size;
	state.soft_memory_limit_in_bytes =
	10000u * 4u *
	static_cast<size_t>(tile_size.width() * tile_size.height());
	state.hard_memory_limit_in_bytes = state.soft_memory_limit_in_bytes;
	state.num_resources_limit = 10000;
	state.memory_limit_policy = ALLOW_ANYTHING;
	state.tree_priority = SMOOTHNESS_TAKES_PRIORITY;
	return state;
	}

	void RunManageTilesTest(const std::string& test_name,
	int layer_count,
	int approximate_tile_count_per_layer) {
	std::vector<LayerImpl*> layers =
	CreateLayers(layer_count, approximate_tile_count_per_layer);
	timer_.Reset();
	do {
	host_impl_.UpdateCurrentFrameTime();
	for (unsigned i = 0; i < layers.size(); ++i)
	layers[i]->UpdateTiles();

	GlobalStateThatImpactsTilePriority global_state(GlobalStateForTest());
	tile_manager()->ManageTiles(global_state);
	tile_manager()->UpdateVisibleTiles();
	timer_.NextLap();
	host_impl_.ResetCurrentFrameTimeForNextFrame();
	} while (!timer_.HasTimeLimitExpired());

	perf_test::PrintResult(
	"manage_tiles", "", test_name, timer_.LapsPerSecond(), "runs/s", true);
	}

	TileManager* tile_manager() { return host_impl_.tile_manager(); }

	protected:
	GlobalStateThatImpactsTilePriority global_state_;

	TestSharedBitmapManager shared_bitmap_manager_;
	TileMemoryLimitPolicy memory_limit_policy_;
	int max_tiles_;
	int id_;
	FakeImplProxy proxy_;
	FakeLayerTreeHostImpl host_impl_;
	FakePictureLayerImpl* pending_root_layer_;
	FakePictureLayerImpl* active_root_layer_;
	LapTimer timer_;
	scoped_refptr<FakePicturePileImpl> picture_pile_;
	LayerTreeSettings settings_;
	};

	TEST_F(TileManagerPerfTest, ManageTiles) {
	RunManageTilesTest("1_100", 1, 100);
	RunManageTilesTest("1_500", 1, 500);
	RunManageTilesTest("1_1000", 1, 1000);
	RunManageTilesTest("5_100", 5, 100);
	RunManageTilesTest("5_500", 5, 500);
	RunManageTilesTest("5_1000", 5, 1000);
	RunManageTilesTest("10_100", 10, 100);
	RunManageTilesTest("10_500", 10, 500);
	RunManageTilesTest("10_1000", 10, 1000);
	RunManageTilesTest("100_100", 100, 100);
	RunManageTilesTest("100_500", 100, 500);
	RunManageTilesTest("100_1000", 100, 1000);
	}

	TEST_F(TileManagerPerfTest, RasterTileIterator) {
	SetupDefaultTrees(gfx::Size(10000, 10000));
	active_root_layer_->CreateDefaultTilingsAndTiles();
	pending_root_layer_->CreateDefaultTilingsAndTiles();

	RunRasterIteratorTest("2_16", 16);
	RunRasterIteratorTest("2_32", 32);
	RunRasterIteratorTest("2_64", 64);
	RunRasterIteratorTest("2_128", 128);
	}

	} // namespace

	} // namespace cc