cc: return resources via a ReturnedResource struct rather than TransferableResource

cc/layers/delegated_renderer_layer.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/layers/delegated_renderer_layer.h"
 
 #include "cc/layers/delegated_renderer_layer_client.h"
 #include "cc/layers/delegated_renderer_layer_impl.h"
 #include "cc/output/delegated_frame_data.h"
 
@@ skipping 52 matching lines @@
     return;
   display_size_ = size;
   SetNeedsCommit();
 }
 
 void DelegatedRendererLayer::SetFrameData(
     scoped_ptr<DelegatedFrameData> new_frame_data) {
   if (frame_data_) {
     // Copy the resources from the last provided frame into the unused resources
     // list, as the new frame will provide its own resources.
-    unused_resources_for_child_compositor_.insert(
-        unused_resources_for_child_compositor_.end(),
-        frame_data_->resource_list.begin(),
-        frame_data_->resource_list.end());
+    TransferableResource::ReturnResources(
+        frame_data_->resource_list,
+        &unused_resources_for_child_compositor_);
   }
   frame_data_ = new_frame_data.Pass();
   if (!frame_data_->render_pass_list.empty()) {
     RenderPass* root_pass = frame_data_->render_pass_list.back();
     damage_in_frame_.Union(root_pass->damage_rect);
     frame_size_ = root_pass->output_rect.size();
   } else {
     frame_size_ = gfx::Size();
   }
   SetNeedsCommit();
 }
 
 void DelegatedRendererLayer::TakeUnusedResourcesForChildCompositor(
-    TransferableResourceArray* array) {
+    ReturnedResourceArray* array) {
   DCHECK(array->empty());
   array->clear();
 
   array->swap(unused_resources_for_child_compositor_);
 }
 
 bool DelegatedRendererLayer::BlocksPendingCommit() const {
   // The active frame needs to be replaced and resources returned before the
   // commit is called complete. This is true even whenever there may be
   // resources to return, regardless of if the layer will draw in its new
   // state.
   return true;
 }
 
 }  // namespace cc