Remove parts of //cc we aren't using

cc/resources/tile_manager.h

Index: cc/resources/tile_manager.h
diff --git a/cc/resources/tile_manager.h b/cc/resources/tile_manager.h
deleted file mode 100644
index 2bdc9e1a29e377ea43360e3dd0bee96c686ecd36..0000000000000000000000000000000000000000
--- a/cc/resources/tile_manager.h
+++ /dev/null
@@ -1,320 +0,0 @@
-// Copyright 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 CC_RESOURCES_TILE_MANAGER_H_
-#define CC_RESOURCES_TILE_MANAGER_H_
-
-#include <deque>
-#include <queue>
-#include <set>
-#include <utility>
-#include <vector>
-
-#include "base/containers/hash_tables.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/values.h"
-#include "cc/base/ref_counted_managed.h"
-#include "cc/base/unique_notifier.h"
-#include "cc/resources/eviction_tile_priority_queue.h"
-#include "cc/resources/memory_history.h"
-#include "cc/resources/raster_source.h"
-#include "cc/resources/raster_tile_priority_queue.h"
-#include "cc/resources/resource_pool.h"
-#include "cc/resources/tile.h"
-#include "cc/resources/tile_draw_info.h"
-#include "cc/resources/tile_task_runner.h"
-
-namespace base {
-namespace trace_event {
-class ConvertableToTraceFormat;
-class TracedValue;
-}
-}
-
-namespace cc {
-class PictureLayerImpl;
-class Rasterizer;
-class ResourceProvider;
-
-class CC_EXPORT TileManagerClient {
- public:
-  // Called when all tiles marked as required for activation are ready to draw.
-  virtual void NotifyReadyToActivate() = 0;
-
-  // Called when all tiles marked as required for draw are ready to draw.
-  virtual void NotifyReadyToDraw() = 0;
-
-  // Called when the visible representation of a tile might have changed. Some
-  // examples are:
-  // - Tile version initialized.
-  // - Tile resources freed.
-  // - Tile marked for on-demand raster.
-  virtual void NotifyTileStateChanged(const Tile* tile) = 0;
-
-  // Given an empty raster tile priority queue, this will build a priority queue
-  // that will return tiles in order in which they should be rasterized.
-  // Note if the queue was previous built, Reset must be called on it.
-  virtual scoped_ptr<RasterTilePriorityQueue> BuildRasterQueue(
-      TreePriority tree_priority,
-      RasterTilePriorityQueue::Type type) = 0;
-
-  // Given an empty eviction tile priority queue, this will build a priority
-  // queue that will return tiles in order in which they should be evicted.
-  // Note if the queue was previous built, Reset must be called on it.
-  virtual scoped_ptr<EvictionTilePriorityQueue> BuildEvictionQueue(
-      TreePriority tree_priority) = 0;
-
-  // Informs the client that due to the currently rasterizing (or scheduled to
-  // be rasterized) tiles, we will be in a position that will likely require a
-  // draw. This can be used to preemptively start a frame.
-  virtual void SetIsLikelyToRequireADraw(bool is_likely_to_require_a_draw) = 0;
-
- protected:
-  virtual ~TileManagerClient() {}
-};
-
-struct RasterTaskCompletionStats {
-  RasterTaskCompletionStats();
-
-  size_t completed_count;
-  size_t canceled_count;
-};
-scoped_refptr<base::trace_event::ConvertableToTraceFormat>
-RasterTaskCompletionStatsAsValue(const RasterTaskCompletionStats& stats);
-
-// This class manages tiles, deciding which should get rasterized and which
-// should no longer have any memory assigned to them. Tile objects are "owned"
-// by layers; they automatically register with the manager when they are
-// created, and unregister from the manager when they are deleted.
-class CC_EXPORT TileManager : public TileTaskRunnerClient,
-                              public RefCountedManager<Tile> {
- public:
-  enum NamedTaskSet {
-    REQUIRED_FOR_ACTIVATION,
-    REQUIRED_FOR_DRAW,
-    // PixelBufferTileTaskWorkerPool depends on ALL being last.
-    ALL
-    // Adding additional values requires increasing kNumberOfTaskSets in
-    // rasterizer.h
-  };
-
-  static_assert(NamedTaskSet::ALL == (kNumberOfTaskSets - 1),
-                "NamedTaskSet::ALL should be equal to kNumberOfTaskSets"
-                "minus 1");
-
-  static scoped_ptr<TileManager> Create(TileManagerClient* client,
-                                        base::SequencedTaskRunner* task_runner,
-                                        ResourcePool* resource_pool,
-                                        TileTaskRunner* tile_task_runner,
-                                        Rasterizer* rasterizer,
-                                        size_t scheduled_raster_task_limit);
-  ~TileManager() override;
-
-  // Assigns tile memory and schedules work to prepare tiles for drawing.
-  // - Runs client_->NotifyReadyToActivate() when all tiles required for
-  // activation are prepared, or failed to prepare due to OOM.
-  // - Runs client_->NotifyReadyToDraw() when all tiles required draw are
-  // prepared, or failed to prepare due to OOM.
-  void PrepareTiles(const GlobalStateThatImpactsTilePriority& state);
-
-  void UpdateVisibleTiles(const GlobalStateThatImpactsTilePriority& state);
-
-  scoped_refptr<Tile> CreateTile(RasterSource* raster_source,
-                                 const gfx::Size& desired_texture_size,
-                                 const gfx::Rect& content_rect,
-                                 float contents_scale,
-                                 int layer_id,
-                                 int source_frame_number,
-                                 int flags);
-
-  scoped_refptr<base::trace_event::ConvertableToTraceFormat> BasicStateAsValue()
-      const;
-  void BasicStateAsValueInto(base::trace_event::TracedValue* dict) const;
-  const MemoryHistory::Entry& memory_stats_from_last_assign() const {
-    return memory_stats_from_last_assign_;
-  }
-
-  void InitializeTilesWithResourcesForTesting(const std::vector<Tile*>& tiles) {
-    for (size_t i = 0; i < tiles.size(); ++i) {
-      TileDrawInfo& draw_info = tiles[i]->draw_info();
-      draw_info.resource_ = resource_pool_->AcquireResource(
-          tiles[i]->desired_texture_size(),
-          tile_task_runner_->GetResourceFormat());
-    }
-  }
-
-  void ReleaseTileResourcesForTesting(const std::vector<Tile*>& tiles) {
-    for (size_t i = 0; i < tiles.size(); ++i) {
-      Tile* tile = tiles[i];
-      FreeResourcesForTile(tile);
-    }
-  }
-
-  void SetGlobalStateForTesting(
-      const GlobalStateThatImpactsTilePriority& state) {
-    global_state_ = state;
-  }
-
-  void SetTileTaskRunnerForTesting(TileTaskRunner* tile_task_runner);
-
-  void FreeResourcesAndCleanUpReleasedTilesForTesting() {
-    FreeResourcesForReleasedTiles();
-    CleanUpReleasedTiles();
-  }
-
-  std::vector<Tile*> AllTilesForTesting() const {
-    std::vector<Tile*> tiles;
-    for (TileMap::const_iterator it = tiles_.begin(); it != tiles_.end();
-         ++it) {
-      tiles.push_back(it->second);
-    }
-    return tiles;
-  }
-
-  void SetScheduledRasterTaskLimitForTesting(size_t limit) {
-    scheduled_raster_task_limit_ = limit;
-  }
-
-  bool IsReadyToActivate() const;
-  bool IsReadyToDraw() const;
-
- protected:
-  TileManager(TileManagerClient* client,
-              const scoped_refptr<base::SequencedTaskRunner>& task_runner,
-              ResourcePool* resource_pool,
-              TileTaskRunner* tile_task_runner,
-              Rasterizer* rasterizer,
-              size_t scheduled_raster_task_limit);
-
-  void FreeResourcesForReleasedTiles();
-  void CleanUpReleasedTiles();
-
-  // Overriden from RefCountedManager<Tile>:
-  friend class Tile;
-  void Release(Tile* tile) override;
-
-  // Overriden from TileTaskRunnerClient:
-  void DidFinishRunningTileTasks(TaskSet task_set) override;
-  TaskSetCollection TasksThatShouldBeForcedToComplete() const override;
-
-  typedef std::vector<Tile*> TileVector;
-  typedef std::set<Tile*> TileSet;
-
-  // Virtual for test
-  virtual void ScheduleTasks(
-      const TileVector& tiles_that_need_to_be_rasterized);
-
-  void AssignGpuMemoryToTiles(RasterTilePriorityQueue* raster_priority_queue,
-                              size_t scheduled_raser_task_limit,
-                              TileVector* tiles_that_need_to_be_rasterized);
-
-  void SynchronouslyRasterizeTiles(
-      const GlobalStateThatImpactsTilePriority& state);
-
- private:
-  class MemoryUsage {
-   public:
-    MemoryUsage();
-    MemoryUsage(int64 memory_bytes, int resource_count);
-
-    static MemoryUsage FromConfig(const gfx::Size& size, ResourceFormat format);
-    static MemoryUsage FromTile(const Tile* tile);
-
-    MemoryUsage& operator+=(const MemoryUsage& other);
-    MemoryUsage& operator-=(const MemoryUsage& other);
-    MemoryUsage operator-(const MemoryUsage& other);
-
-    bool Exceeds(const MemoryUsage& limit) const;
-    int64 memory_bytes() const { return memory_bytes_; }
-
-   private:
-    int64 memory_bytes_;
-    int resource_count_;
-  };
-
-  void OnImageDecodeTaskCompleted(int layer_id,
-                                  SkPixelRef* pixel_ref,
-                                  bool was_canceled);
-  void OnRasterTaskCompleted(Tile::Id tile,
-                             scoped_ptr<ScopedResource> resource,
-                             const RasterSource::SolidColorAnalysis& analysis,
-                             bool was_canceled);
-  void UpdateTileDrawInfo(Tile* tile,
-                          scoped_ptr<ScopedResource> resource,
-                          const RasterSource::SolidColorAnalysis& analysis);
-
-  void FreeResourcesForTile(Tile* tile);
-  void FreeResourcesForTileAndNotifyClientIfTileWasReadyToDraw(Tile* tile);
-  scoped_refptr<ImageDecodeTask> CreateImageDecodeTask(Tile* tile,
-                                                       SkPixelRef* pixel_ref);
-  scoped_refptr<RasterTask> CreateRasterTask(Tile* tile);
-
-  scoped_ptr<EvictionTilePriorityQueue>
-  FreeTileResourcesUntilUsageIsWithinLimit(
-      scoped_ptr<EvictionTilePriorityQueue> eviction_priority_queue,
-      const MemoryUsage& limit,
-      MemoryUsage* usage);
-  scoped_ptr<EvictionTilePriorityQueue>
-  FreeTileResourcesWithLowerPriorityUntilUsageIsWithinLimit(
-      scoped_ptr<EvictionTilePriorityQueue> eviction_priority_queue,
-      const MemoryUsage& limit,
-      const TilePriority& oother_priority,
-      MemoryUsage* usage);
-  bool TilePriorityViolatesMemoryPolicy(const TilePriority& priority);
-  bool AreRequiredTilesReadyToDraw(RasterTilePriorityQueue::Type type) const;
-  void NotifyReadyToActivate();
-  void NotifyReadyToDraw();
-  void CheckIfReadyToActivate();
-  void CheckIfReadyToDraw();
-  void CheckIfMoreTilesNeedToBePrepared();
-
-  TileManagerClient* client_;
-  scoped_refptr<base::SequencedTaskRunner> task_runner_;
-  ResourcePool* resource_pool_;
-  TileTaskRunner* tile_task_runner_;
-  Rasterizer* rasterizer_;
-  GlobalStateThatImpactsTilePriority global_state_;
-  size_t scheduled_raster_task_limit_;
-
-  typedef base::hash_map<Tile::Id, Tile*> TileMap;
-  TileMap tiles_;
-
-  bool all_tiles_that_need_to_be_rasterized_are_scheduled_;
-  MemoryHistory::Entry memory_stats_from_last_assign_;
-
-  bool did_check_for_completed_tasks_since_last_schedule_tasks_;
-  bool did_oom_on_last_assign_;
-
-  typedef base::hash_map<uint32_t, scoped_refptr<ImageDecodeTask>>
-      PixelRefTaskMap;
-  typedef base::hash_map<int, PixelRefTaskMap> LayerPixelRefTaskMap;
-  LayerPixelRefTaskMap image_decode_tasks_;
-
-  typedef base::hash_map<int, int> LayerCountMap;
-  LayerCountMap used_layer_counts_;
-
-  RasterTaskCompletionStats update_visible_tiles_stats_;
-
-  std::vector<Tile*> released_tiles_;
-
-  // Queue used when scheduling raster tasks.
-  TileTaskQueue raster_queue_;
-
-  std::vector<scoped_refptr<RasterTask>> orphan_raster_tasks_;
-
-  UniqueNotifier ready_to_activate_notifier_;
-  UniqueNotifier ready_to_draw_notifier_;
-  UniqueNotifier ready_to_activate_check_notifier_;
-  UniqueNotifier ready_to_draw_check_notifier_;
-  UniqueNotifier more_tiles_need_prepare_check_notifier_;
-
-  bool did_notify_ready_to_activate_;
-  bool did_notify_ready_to_draw_;
-
-  DISALLOW_COPY_AND_ASSIGN(TileManager);
-};
-
-}  // namespace cc
-
-#endif  // CC_RESOURCES_TILE_MANAGER_H_