Added preliminary support for tile rasterization with Ganesh

cc/test/fake_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_TEST_FAKE_TILE_MANAGER_H_
 #define  CC_TEST_FAKE_TILE_MANAGER_H_
 
 #include <set>
 #include <vector>
 
@@ skipping 14 matching lines @@
   void AssignMemoryToTiles(
       const GlobalStateThatImpactsTilePriority& state);
 
   void CheckForCompletedTasks();
 
   virtual ~FakeTileManager();
 
   virtual void Release(Tile* tile) OVERRIDE;
   virtual void Release(TileBundle* bundle) OVERRIDE;
 
+  int CompletedGpuRasterizedTiles();
+
   std::vector<Tile*> tiles_for_raster;
   PrioritizedTileSet all_tiles;
 
  private:
   bool in_bundle_cleanup_;
 };
 
 }  // namespace cc
 
 #endif  // CC_TEST_FAKE_TILE_MANAGER_H_