Clean up tile deletion

cc/test/fake_picture_layer_tiling_client.cc

 // 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.
 
 #include "cc/test/fake_picture_layer_tiling_client.h"
 
 #include <stddef.h>
 
 #include <limits>
 
@@ skipping 20 matching lines @@
       tile_manager_(
           new FakeTileManager(&tile_manager_client_, resource_pool_.get())),
       raster_source_(FakeRasterSource::CreateInfiniteFilled()),
       twin_set_(nullptr),
       twin_tiling_(nullptr),
       has_valid_tile_priorities_(true) {}
 
 FakePictureLayerTilingClient::~FakePictureLayerTilingClient() {
 }
 
-ScopedTilePtr FakePictureLayerTilingClient::CreateTile(
+std::unique_ptr<Tile> FakePictureLayerTilingClient::CreateTile(
     const Tile::CreateInfo& info) {
   return tile_manager_->CreateTile(info, 0, 0, 0);
 }
 
 void FakePictureLayerTilingClient::SetTileSize(const gfx::Size& tile_size) {
   tile_size_ = tile_size;
 }
 
 gfx::Size FakePictureLayerTilingClient::CalculateTileSize(
     const gfx::Size& /* content_bounds */) const {
@@ skipping 19 matching lines @@
       return twin_set_->tiling_at(i);
   }
   return nullptr;
 }
 
 bool FakePictureLayerTilingClient::RequiresHighResToDraw() const {
   return false;
 }
 
 }  // namespace cc