Make cc::CompositorFrames movable [Part 1 of 2]

content/renderer/gpu/compositor_output_surface.h

 // Copyright (c) 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.
 
 #ifndef CONTENT_RENDERER_GPU_COMPOSITOR_OUTPUT_SURFACE_H_
 #define CONTENT_RENDERER_GPU_COMPOSITOR_OUTPUT_SURFACE_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 39 matching lines @@
   CompositorOutputSurface(
       int32_t routing_id,
       uint32_t output_surface_id,
       scoped_refptr<cc::VulkanContextProvider> vulkan_context_provider,
       scoped_refptr<FrameSwapMessageQueue> swap_frame_message_queue);
   ~CompositorOutputSurface() override;
 
   // cc::OutputSurface implementation.
   bool BindToClient(cc::OutputSurfaceClient* client) override;
   void DetachFromClient() override;
-  void SwapBuffers(cc::CompositorFrame* frame) override;
+  void SwapBuffers(cc::CompositorFrame frame) override;
   void BindFramebuffer() override;
   uint32_t GetFramebufferCopyTextureFormat() override;
 
  protected:
   uint32_t output_surface_id_;
 
  private:
   class CompositorOutputSurfaceProxy :
       public base::RefCountedThreadSafe<CompositorOutputSurfaceProxy> {
    public:
@@ skipping 26 matching lines @@
   CompositorForwardingMessageFilter::Handler output_surface_filter_handler_;
   scoped_refptr<CompositorOutputSurfaceProxy> output_surface_proxy_;
   scoped_refptr<IPC::SyncMessageFilter> message_sender_;
   scoped_refptr<FrameSwapMessageQueue> frame_swap_message_queue_;
   int routing_id_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_GPU_COMPOSITOR_OUTPUT_SURFACE_H_