Passing FrameSinkId to WindowCompositorFrameSink

content/renderer/gpu/render_widget_compositor_delegate.h

 // Copyright 2015 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_GPU_RENDER_WIDGET_COMPOSITOR_DELEGATE_H_
 #define CONTENT_RENDERER_GPU_RENDER_WIDGET_COMPOSITOR_DELEGATE_H_
 
 #include <memory>
 #include <vector>
 
 #include "content/common/content_export.h"
 
 namespace cc {
 class CopyOutputRequest;
 class CompositorFrameSink;
+class FrameSinkId;
 class SwapPromise;
 }
 
 namespace gfx {
 class Vector2dF;
 }
 
 namespace content {
 
 // Consumers of RenderWidgetCompositor implement this delegate in order to
 // transport compositing information across processes.
 class CONTENT_EXPORT RenderWidgetCompositorDelegate {
  public:
   // Report viewport related properties during a commit from the compositor
   // thread.
   virtual void ApplyViewportDeltas(
       const gfx::Vector2dF& inner_delta,
       const gfx::Vector2dF& outer_delta,
       const gfx::Vector2dF& elastic_overscroll_delta,
       float page_scale,
       float top_controls_delta) = 0;
 
   // Notifies that the compositor has issed a BeginMainFrame.
   virtual void BeginMainFrame(double frame_time_sec) = 0;
 
   // Requests a CompositorFrameSink to submit to.
   virtual std::unique_ptr<cc::CompositorFrameSink> CreateCompositorFrameSink(
+      const cc::FrameSinkId& frame_sink_id,
       bool fallback) = 0;
 
   // Notifies that the draw commands for a committed frame have been issued.
   virtual void DidCommitAndDrawCompositorFrame() = 0;
 
   // Notifies about a compositor frame commit operation having finished.
   virtual void DidCommitCompositorFrame() = 0;
 
   // Called by the compositor when page scale animation completed.
   virtual void DidCompletePageScaleAnimation() = 0;
@@ skipping 27 matching lines @@
   virtual std::unique_ptr<cc::SwapPromise> RequestCopyOfOutputForLayoutTest(
       std::unique_ptr<cc::CopyOutputRequest> request) = 0;
 
  protected:
   virtual ~RenderWidgetCompositorDelegate() {}
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_GPU_RENDER_WIDGET_COMPOSITOR_DELEGATE_H_