cc: GPU rasterize tiles synchronously in PrepareToDraw

cc/resources/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_RESOURCES_TILE_MANAGER_H_
 #define CC_RESOURCES_TILE_MANAGER_H_
 
 #include <deque>
 #include <queue>
 #include <set>
@@ skipping 88 matching lines @@
 
   static scoped_ptr<TileManager> Create(
       TileManagerClient* client,
       base::SequencedTaskRunner* task_runner,
       ResourcePool* resource_pool,
       Rasterizer* rasterizer,
       RenderingStatsInstrumentation* rendering_stats_instrumentation,
       size_t scheduled_raster_task_limit);
   ~TileManager() override;
 
+  void RasterizeTiles(const GlobalStateThatImpactsTilePriority& state);
   void ManageTiles(const GlobalStateThatImpactsTilePriority& state);
 
   void UpdateVisibleTiles();
 
   scoped_refptr<Tile> CreateTile(RasterSource* raster_source,
                                  const gfx::Size& tile_size,
                                  const gfx::Rect& content_rect,
                                  float contents_scale,
                                  int layer_id,
                                  int source_frame_number,
@@ skipping 62 matching lines @@
   void DidFinishRunningTasks(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(TileVector* tiles_that_need_to_be_rasterized);
+  void AssignGpuMemoryToTiles(TileVector* tiles_that_need_to_be_rasterized,
+                              size_t scheduled_raser_task_limit);
 
  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);
 
@@ skipping 79 matching lines @@
   RasterTilePriorityQueue raster_priority_queue_;
   EvictionTilePriorityQueue eviction_priority_queue_;
   bool eviction_priority_queue_is_up_to_date_;
 
   DISALLOW_COPY_AND_ASSIGN(TileManager);
 };
 
 }  // namespace cc
 
 #endif  // CC_RESOURCES_TILE_MANAGER_H_