Fork cc::OutputSurface into cc::CompositorFrameSink.

blimp/client/core/compositor/blimp_output_surface.h

-// Copyright 2016 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 BLIMP_CLIENT_CORE_COMPOSITOR_BLIMP_OUTPUT_SURFACE_H_
-#define BLIMP_CLIENT_CORE_COMPOSITOR_BLIMP_OUTPUT_SURFACE_H_
-
-#include "base/macros.h"
-#include "base/memory/weak_ptr.h"
-#include "cc/resources/returned_resource.h"
-
-namespace cc {
-class CompositorFrame;
-}
-
-namespace blimp {
-namespace client {
-
-// This class is a proxy for the BlimpOutputSurfaceClient to interact with the
-// DelegatedOutputSurface. It should be called on the compositor thread only.
-class BlimpOutputSurface {
- public:
-  virtual ~BlimpOutputSurface() {}
-
-  // Sent when the compositor can reclaim the |resources| references in a
-  // compositor frame.
-  virtual void ReclaimCompositorResources(
-      const cc::ReturnedResourceArray& resources) = 0;
-};
-
-// This class is meant to be a proxy for the OutputSurface to interact with the
-// consumer of the CompositorFrames. It should be called on the main thread
-// only.
-class BlimpOutputSurfaceClient {
- public:
-  virtual ~BlimpOutputSurfaceClient() {}
-
-  // Will be called before any frames are sent to the client. The weak ptr
-  // provided here can be used to post messages to the output surface on the
-  // compositor thread.
-  virtual void BindToOutputSurface(
-      base::WeakPtr<BlimpOutputSurface> output_surface) = 0;
-
-  // The implementation should take the contents of the compositor frame and
-  // return the referenced resources when the frame is no longer being drawn
-  // using BlimpOutputSurface::ReclaimCompositorResources.
-  virtual void SwapCompositorFrame(cc::CompositorFrame frame) = 0;
-
-  // Will be called when the use of the OutputSurface is being terminated. No
-  // calls from this output surface will be made to the client after this point.
-  virtual void UnbindOutputSurface() = 0;
-};
-
-}  // namespace client
-}  // namespace blimp
-
-#endif  // BLIMP_CLIENT_CORE_COMPOSITOR_BLIMP_OUTPUT_SURFACE_H_