Fork cc::OutputSurface into cc::CompositorFrameSink.

content/renderer/render_widget.h

Index: content/renderer/render_widget.h
diff --git a/content/renderer/render_widget.h b/content/renderer/render_widget.h
index 83e08e2447ee01a6d98c5c22fa2b8e96e1cabbd1..987221cfabcb1e8f6c9b3170eb576a699cf2de06 100644
--- a/content/renderer/render_widget.h
+++ b/content/renderer/render_widget.h
@@ -74,7 +74,7 @@ struct WebPoint;
 }
 
 namespace cc {
-class OutputSurface;
+class CompositorFrameSink;
 class SwapPromise;
 }
 
@@ -216,7 +216,7 @@ class CONTENT_EXPORT RenderWidget
                            float page_scale,
                            float top_controls_delta) override;
   void BeginMainFrame(double frame_time_sec) override;
-  std::unique_ptr<cc::OutputSurface> CreateOutputSurface(
+  std::unique_ptr<cc::CompositorFrameSink> CreateCompositorFrameSink(
       bool fallback) override;
   void DidCommitAndDrawCompositorFrame() override;
   void DidCommitCompositorFrame() override;