cc: Add image decode queue functionality to image manager.

cc/tiles/tile_manager.h

 // 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_TILES_TILE_MANAGER_H_
 #define CC_TILES_TILE_MANAGER_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <memory>
 #include <set>
 #include <unordered_map>
 #include <utility>
 #include <vector>
 
 #include "base/macros.h"
 #include "base/values.h"
 #include "cc/base/unique_notifier.h"
 #include "cc/playback/raster_source.h"
 #include "cc/raster/raster_buffer_provider.h"
 #include "cc/resources/memory_history.h"
 #include "cc/resources/resource_pool.h"
+#include "cc/tiles/decoded_image_tracker.h"
 #include "cc/tiles/eviction_tile_priority_queue.h"
 #include "cc/tiles/image_controller.h"
 #include "cc/tiles/raster_tile_priority_queue.h"
 #include "cc/tiles/tile.h"
 #include "cc/tiles/tile_draw_info.h"
 #include "cc/tiles/tile_task_manager.h"
 
 namespace base {
 namespace trace_event {
 class ConvertableToTraceFormat;
@@ skipping 57 matching lines @@
 std::unique_ptr<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:
   TileManager(TileManagerClient* client,
-              base::SequencedTaskRunner* task_runner,
+              base::SequencedTaskRunner* origin_task_runner,
+              scoped_refptr<base::SequencedTaskRunner> image_worker_task_runner,
               size_t scheduled_raster_task_limit,
               bool use_partial_raster,
               bool check_tile_priority_inversion);
   virtual ~TileManager();
 
   // 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.
@@ skipping 87 matching lines @@
 
   bool HasScheduledTileTasksForTesting() const {
     return has_scheduled_tile_tasks_;
   }
 
   void OnRasterTaskCompleted(std::unique_ptr<RasterBuffer> raster_buffer,
                              Tile::Id tile_id,
                              Resource* resource,
                              bool was_canceled);
 
+  void SetDecodedImageTracker(DecodedImageTracker* decoded_image_tracker);
+
  protected:
   friend class Tile;
   // Must be called by tile during destruction.
   void Release(Tile* tile);
   Tile::Id GetUniqueTileId() { return ++next_tile_id_; }
 
  private:
   class MemoryUsage {
    public:
     MemoryUsage();
@@ skipping 117 matching lines @@
   const bool check_tile_priority_inversion_;
 
   base::WeakPtrFactory<TileManager> task_set_finished_weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(TileManager);
 };
 
 }  // namespace cc
 
 #endif  // CC_TILES_TILE_MANAGER_H_