cc: Rename SwapBuffers on CompositorFrameSink to SubmitCompositorFrame

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>
 
@@ skipping 86 matching lines @@
   // If supported, this causes a ReclaimResources for all resources that are
   // currently in use.
   virtual void ForceReclaimResources() {}
 
   // Support for a pull-model where draws are requested by the output surface.
   //
   // 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();
+  // For successful swaps, the implementation must call
+  // DidReceiveCompositorFrameAck() asynchronously when the frame has been

[sunnyps, 2016/10/11 18:32:48]

bikeshed: DidAckCompositorFrame? or OnCompositorFrameAck? or
DidReturnCompositorFrame?

+  // processed in order to unthrottle the next frame.
+  virtual void SubmitCompositorFrame(CompositorFrame frame) = 0;
 
  protected:
   // 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:
   DISALLOW_COPY_AND_ASSIGN(CompositorFrameSink);
 };
 
 }  // namespace cc
 
 #endif  // CC_OUTPUT_COMPOSITOR_FRAME_SINK_H_