Revert "cc: Remove Tile refcounting and RefCountedManaged."

cc/test/fake_picture_layer_tiling_client.cc

Index: cc/test/fake_picture_layer_tiling_client.cc
diff --git a/cc/test/fake_picture_layer_tiling_client.cc b/cc/test/fake_picture_layer_tiling_client.cc
index ae6d59376d7ad04bd442598c7dafd7c8b1a3097f..0717a98564c49c512f6319b8f2b288c989fefa44 100644
--- a/cc/test/fake_picture_layer_tiling_client.cc
+++ b/cc/test/fake_picture_layer_tiling_client.cc
@@ -33,8 +33,9 @@ FakePictureLayerTilingClient::FakePictureLayerTilingClient(
 FakePictureLayerTilingClient::~FakePictureLayerTilingClient() {
 }
 
-ScopedTilePtr FakePictureLayerTilingClient::CreateTile(float content_scale,
-                                                       const gfx::Rect& rect) {
+scoped_refptr<Tile> FakePictureLayerTilingClient::CreateTile(
+    float content_scale,
+    const gfx::Rect& rect) {
   return tile_manager_->CreateTile(pile_.get(), tile_size_, rect, 1, 0, 0, 0);
 }