Chromium style checker cleanup

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"
 
 namespace cc {
 
 class FakeInfinitePicturePileImpl : public PicturePileImpl {
  public:
   FakeInfinitePicturePileImpl() {
     gfx::Size size(std::numeric_limits<int>::max(),
                    std::numeric_limits<int>::max());
     Resize(size);
     recorded_region_ = Region(gfx::Rect(size));
   }
 
  protected:
-  ~FakeInfinitePicturePileImpl() {}
+  virtual ~FakeInfinitePicturePileImpl() {}
 };
 
 FakePictureLayerTilingClient::FakePictureLayerTilingClient()
     : tile_manager_(&tile_manager_client_, NULL, 1, false, false, false),
       pile_(new FakeInfinitePicturePileImpl()) {
 }
 
 FakePictureLayerTilingClient::~FakePictureLayerTilingClient() {
 }
 
@@ skipping 14 matching lines @@
   tile_size_ = tile_size;
 }
 
 gfx::Size FakePictureLayerTilingClient::CalculateTileSize(
     gfx::Size /* current_tile_size */,
     gfx::Size /* content_bounds */) {
   return tile_size_;
 }
 
 }  // namespace cc