cc: Fix BytesPerPixel issue and refactor.

cc/tiles/tile.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/tiles/tile.h"
 
 #include <algorithm>
 
 #include "base/numerics/safe_conversions.h"
 #include "base/trace_event/trace_event_argument.h"
@@ skipping 53 matching lines @@
   value->SetInteger("scheduled_priority", scheduled_priority_);
   value->SetBoolean("use_picture_analysis", use_picture_analysis());
   value->SetInteger("gpu_memory_usage",
                     base::saturated_cast<int>(GPUMemoryUsageInBytes()));
 }
 
 size_t Tile::GPUMemoryUsageInBytes() const {
   if (draw_info_.resource_) {
     // We can use UncheckedSizeInBytes, since the tile size is determined by the
     // compositor.
-    return Resource::UncheckedMemorySizeBytes(draw_info_.resource_->size(),
-                                              draw_info_.resource_->format());
+    return ResourceUtil::UncheckedSizeInBytes<size_t>(
+        draw_info_.resource_->size(), draw_info_.resource_->format());
   }
   return 0;
 }
 
 void Tile::Deleter::operator()(Tile* tile) const {
   TileManager* tile_manager = tile->tile_manager_;
   tile_manager->Release(tile);
 }
 
 }  // namespace cc