cc: Low quality support for low res tiles

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 057ae92ec15f443fa4e432b637a3ae4b2c2def9d..4df08930f7b615f8bd6fb35d4aee335d5f4910fb 100644
--- a/cc/resources/tile_manager.h
+++ b/cc/resources/tile_manager.h
@@ -124,10 +124,12 @@ class CC_EXPORT TileManager {
       int layer_id;
       const void* tile_id;
       int source_frame_number;
+      unsigned raster_flags;
   };
 
   void AssignBinsToTiles();
   void SortTiles();
+  unsigned DetermineRasterFlags(const Tile* tile) const;
   void AssignGpuMemoryToTiles();
   void FreeResourcesForTile(Tile* tile);
   void ScheduleManageTiles() {
@@ -147,6 +149,7 @@ class CC_EXPORT TileManager {
       scoped_refptr<Tile> tile,
       scoped_ptr<ResourcePool::Resource> resource,
       PicturePileImpl::Analysis* analysis,
+      unsigned raster_flags,
       bool was_canceled);
   void DidFinishTileInitialization(Tile* tile);
   void DidTileTreeBinChange(Tile* tile,