Make cc::CompositorFrames movable [Part 2 of 2]

content/browser/frame_host/render_widget_host_view_child_frame.cc

 // Copyright 2014 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 "content/browser/frame_host/render_widget_host_view_child_frame.h"
 
 #include <algorithm>
 #include <utility>
 #include <vector>
 
@@ skipping 404 matching lines @@
     frame_connector_->SetChildFrameSurface(surface_id_, frame_size,
                                            scale_factor, sequence);
   }
 
   cc::SurfaceFactory::DrawCallback ack_callback =
       base::Bind(&RenderWidgetHostViewChildFrame::SurfaceDrawn, AsWeakPtr(),
                  output_surface_id);
   ack_pending_count_++;
   // If this value grows very large, something is going wrong.
   DCHECK_LT(ack_pending_count_, 1000U);
-  std::unique_ptr<cc::CompositorFrame> frame_copy(new cc::CompositorFrame);
-  *frame_copy = std::move(frame);
-  surface_factory_->SubmitCompositorFrame(surface_id_, std::move(frame_copy),
+  surface_factory_->SubmitCompositorFrame(surface_id_, std::move(frame),
                                           ack_callback);
 
   ProcessFrameSwappedCallbacks();
 }
 
 void RenderWidgetHostViewChildFrame::ProcessFrameSwappedCallbacks() {
   // We only use callbacks once, therefore we make a new list for registration
   // before we start, and discard the old list entries when we are done.
   FrameSwappedCallbackList process_callbacks;
   process_callbacks.swap(frame_swapped_callbacks_);
@@ skipping 256 matching lines @@
 
 bool RenderWidgetHostViewChildFrame::IsChildFrameForTesting() const {
   return true;
 }
 
 cc::SurfaceId RenderWidgetHostViewChildFrame::SurfaceIdForTesting() const {
   return surface_id_;
 };
 
 }  // namespace content