TileMap            77 cc/resources/layer_tiling_data.h   typedef base::ScopedPtrHashMap<TileMapKey, Tile> TileMap;
TileMap           262 cc/resources/picture_layer_tiling.h   typedef base::hash_map<TileMapKey, scoped_refptr<Tile> > TileMap;
TileMap           256 cc/resources/tile_manager.h   typedef base::hash_map<Tile::Id, Tile*> TileMap;