cc: Get rid of PostSwapBuffersComplete.

cc/output/compositor_frame_sink.h

 // 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.
 
 #ifndef CC_OUTPUT_COMPOSITOR_FRAME_SINK_H_
 #define CC_OUTPUT_COMPOSITOR_FRAME_SINK_H_
 
 #include <deque>
 #include <memory>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
-#include "base/memory/weak_ptr.h"
 #include "base/threading/thread_checker.h"
 #include "cc/base/cc_export.h"
 #include "cc/output/context_provider.h"
 #include "cc/output/overlay_candidate_validator.h"
 #include "cc/output/vulkan_context_provider.h"
 #include "cc/resources/returned_resource.h"
 #include "gpu/command_buffer/common/texture_in_use_response.h"
 #include "ui/gfx/color_space.h"
 
 namespace ui {
@@ skipping 81 matching lines @@
   // CompositorFrameSink::Invalidate is called by the compositor to notify that
   // there's new content.
   virtual void Invalidate() {}
 
   // For successful swaps, the implementation must call DidSwapBuffersComplete()
   // (via OnSwapBuffersComplete()) eventually.
   virtual void SwapBuffers(CompositorFrame frame) = 0;
   virtual void OnSwapBuffersComplete();
 
  protected:
-  // This is used by both display and delegating implementations.
-  void PostSwapBuffersComplete();
-
   // Bound to the ContextProvider to hear about when it is lost and inform the
   // |client_|.
   void DidLoseCompositorFrameSink();
 
   CompositorFrameSinkClient* client_ = nullptr;
 
   struct CompositorFrameSink::Capabilities capabilities_;
   scoped_refptr<ContextProvider> context_provider_;
   scoped_refptr<ContextProvider> worker_context_provider_;
   scoped_refptr<VulkanContextProvider> vulkan_context_provider_;
   base::ThreadChecker client_thread_checker_;
 
  private:
   void DetachFromClientInternal();
 
-  base::WeakPtrFactory<CompositorFrameSink> weak_ptr_factory_;
-
   DISALLOW_COPY_AND_ASSIGN(CompositorFrameSink);
 };
 
 }  // namespace cc
 
 #endif  // CC_OUTPUT_COMPOSITOR_FRAME_SINK_H_