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

content/renderer/android/synchronous_compositor_output_surface.h

 // Copyright 2013 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_ANDROID_SYNCHRONOUS_COMPOSITOR_OUTPUT_SURFACE_H_
 #define CONTENT_RENDERER_ANDROID_SYNCHRONOUS_COMPOSITOR_OUTPUT_SURFACE_H_
 
 #include <stddef.h>
 
 #include <memory>
@@ skipping 24 matching lines @@
 
 class FrameSwapMessageQueue;
 class SynchronousCompositorRegistry;
 class WebGraphicsContext3DCommandBufferImpl;
 
 class SynchronousCompositorOutputSurfaceClient {
  public:
   virtual void DidActivatePendingTree() = 0;
   virtual void Invalidate() = 0;
   virtual void SwapBuffers(uint32_t output_surface_id,
-                           cc::CompositorFrame* frame) = 0;
+                           cc::CompositorFrame frame) = 0;
 
  protected:
   virtual ~SynchronousCompositorOutputSurfaceClient() {}
 };
 
 // Specialization of the output surface that adapts it to implement the
 // content::SynchronousCompositor public API. This class effects an "inversion
 // of control" - enabling drawing to be  orchestrated by the embedding
 // layer, instead of driven by the compositor internals - hence it holds two
 // 'client' pointers (|client_| in the OutputSurface baseclass and
@@ skipping 14 matching lines @@
 
   void SetSyncClient(SynchronousCompositorOutputSurfaceClient* compositor);
   bool OnMessageReceived(const IPC::Message& message);
 
   // OutputSurface.
   bool BindToClient(cc::OutputSurfaceClient* surface_client) override;
   void DetachFromClient() override;
   void Reshape(const gfx::Size& size,
                float scale_factor,
                bool has_alpha) override;
-  void SwapBuffers(cc::CompositorFrame* frame) override;
+  void SwapBuffers(cc::CompositorFrame frame) override;
   void Invalidate() override;
   void BindFramebuffer() override;
   uint32_t GetFramebufferCopyTextureFormat() override;
 
   // Partial SynchronousCompositor API implementation.
   void DemandDrawHw(const gfx::Size& surface_size,
                     const gfx::Transform& transform,
                     const gfx::Rect& viewport,
                     const gfx::Rect& clip,
                     const gfx::Rect& viewport_rect_for_tile_priority,
@@ skipping 42 matching lines @@
   bool fallback_tick_running_;
 
   base::ThreadChecker thread_checker_;
 
   DISALLOW_COPY_AND_ASSIGN(SynchronousCompositorOutputSurface);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_ANDROID_SYNCHRONOUS_COMPOSITOR_OUTPUT_SURFACE_H_