Added preliminary support for tile rasterization with Ganesh

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
index 0aa89d749fb69c72217f05d6f2b537d67417f006..6cfba6722faf2b7b2e4a3f4415cb84fb43b14fd1 100644
--- a/cc/resources/tile_manager.h
+++ b/cc/resources/tile_manager.h
@@ -14,6 +14,7 @@
 #include "base/values.h"
 #include "cc/base/ref_counted_managed.h"
 #include "cc/debug/rendering_stats_instrumentation.h"
+#include "cc/resources/gpu_rasterizer.h"
 #include "cc/resources/managed_tile_state.h"
 #include "cc/resources/memory_history.h"
 #include "cc/resources/picture_pile_impl.h"
@@ -47,11 +48,13 @@ scoped_ptr<base::Value> RasterTaskCompletionStatsAsValue(
 // 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 RasterWorkerPoolClient,
+                              public GpuRasterizerClient,
                               public RefCountedManager<Tile> {
  public:
   static scoped_ptr<TileManager> Create(
       TileManagerClient* client,
       ResourceProvider* resource_provider,
+      ContextProvider* context_provider,
       size_t num_raster_threads,
       RenderingStatsInstrumentation* rendering_stats_instrumentation,
       bool use_map_image,
@@ -72,7 +75,8 @@ class CC_EXPORT TileManager : public RasterWorkerPoolClient,
                                  float contents_scale,
                                  int layer_id,
                                  int source_frame_number,
-                                 bool can_use_lcd_text);
+                                 bool can_use_lcd_text,
+                                 bool use_gpu_rasterizer);
 
   scoped_ptr<base::Value> BasicStateAsValue() const;
   scoped_ptr<base::Value> AllTilesAsValue() const;
@@ -116,9 +120,14 @@ class CC_EXPORT TileManager : public RasterWorkerPoolClient,
     }
   }
 
+  // GpuRasterizerClient interface
+  virtual void OnGpuRasterTaskCompleted(
+      Tile* tile, scoped_ptr<ResourcePool::Resource> resource) OVERRIDE;
+
  protected:
   TileManager(TileManagerClient* client,
               ResourceProvider* resource_provider,
+              ContextProvider* context_provider,
               scoped_ptr<RasterWorkerPool> raster_worker_pool,
               size_t num_raster_threads,
               size_t max_raster_usage_bytes,
@@ -181,6 +190,7 @@ class CC_EXPORT TileManager : public RasterWorkerPoolClient,
   TileManagerClient* client_;
   scoped_ptr<ResourcePool> resource_pool_;
   scoped_ptr<RasterWorkerPool> raster_worker_pool_;
+  scoped_ptr<GpuRasterizer> gpu_rasterizer_;
   GlobalStateThatImpactsTilePriority global_state_;
 
   typedef base::hash_map<Tile::Id, Tile*> TileMap;