Revert "cc: Remove Tile refcounting and RefCountedManaged."

cc/resources/tile.cc

Index: cc/resources/tile.cc
diff --git a/cc/resources/tile.cc b/cc/resources/tile.cc
index 94e42ec11e1a68ccd4cb59d8dabb4a71a0623c9b..7467d9330ab217627ac9e973af3ea1087809a8e8 100644
--- a/cc/resources/tile.cc
+++ b/cc/resources/tile.cc
@@ -23,7 +23,7 @@ Tile::Tile(TileManager* tile_manager,
            int layer_id,
            int source_frame_number,
            int flags)
-    : tile_manager_(tile_manager),
+    : RefCountedManaged<Tile>(tile_manager),
       desired_texture_size_(desired_texture_size),
       content_rect_(content_rect),
       contents_scale_(contents_scale),
@@ -91,9 +91,4 @@ size_t Tile::GPUMemoryUsageInBytes() const {
   return 0;
 }
 
-void Tile::Deleter::operator()(Tile* tile) const {
-  TileManager* tile_manager = tile->tile_manager_;
-  tile_manager->Release(tile);
-}
-
 }  // namespace cc