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

content/browser/compositor/software_browser_compositor_output_surface.h

 // 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.
 
 #ifndef CONTENT_BROWSER_COMPOSITOR_SOFTWARE_BROWSER_COMPOSITOR_OUTPUT_SURFACE_H_
 #define CONTENT_BROWSER_COMPOSITOR_SOFTWARE_BROWSER_COMPOSITOR_OUTPUT_SURFACE_H_
 
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "build/build_config.h"
@@ skipping 14 matching lines @@
     : public BrowserCompositorOutputSurface {
  public:
   SoftwareBrowserCompositorOutputSurface(
       std::unique_ptr<cc::SoftwareOutputDevice> software_device,
       const scoped_refptr<ui::CompositorVSyncManager>& vsync_manager,
       cc::SyntheticBeginFrameSource* begin_frame_source);
 
   ~SoftwareBrowserCompositorOutputSurface() override;
 
   // OutputSurface implementation.
-  void SwapBuffers(cc::CompositorFrame* frame) override;
+  void SwapBuffers(cc::CompositorFrame frame) override;
   void BindFramebuffer() override;
   uint32_t GetFramebufferCopyTextureFormat() override;
 
  private:
   // BrowserCompositorOutputSurface implementation.
   void OnGpuSwapBuffersCompleted(
       const std::vector<ui::LatencyInfo>& latency_info,
       gfx::SwapResult result,
       const gpu::GpuProcessHostedCALayerTreeParamsMac* params_mac) override;
 
 #if defined(OS_MACOSX)
   void SetSurfaceSuspendedForRecycle(bool suspended) override;
 #endif
 
   base::WeakPtrFactory<SoftwareBrowserCompositorOutputSurface> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(SoftwareBrowserCompositorOutputSurface);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_COMPOSITOR_SOFTWARE_BROWSER_COMPOSITOR_OUTPUT_SURFACE_H_