Revert "Use MojoCompositorFrameSink in RendererCompositorFrameSink"

content/browser/frame_host/render_widget_host_view_child_frame.h

Index: content/browser/frame_host/render_widget_host_view_child_frame.h
diff --git a/content/browser/frame_host/render_widget_host_view_child_frame.h b/content/browser/frame_host/render_widget_host_view_child_frame.h
index 213581d2ec1527df24f84dece81463c439dee614..2b91e4016a06c4560c4fed8635072fa6cb635633 100644
--- a/content/browser/frame_host/render_widget_host_view_child_frame.h
+++ b/content/browser/frame_host/render_widget_host_view_child_frame.h
@@ -107,9 +107,7 @@ class CONTENT_EXPORT RenderWidgetHostViewChildFrame
   bool HasAcceleratedSurface(const gfx::Size& desired_size) override;
   void GestureEventAck(const blink::WebGestureEvent& event,
                        InputEventAckState ack_result) override;
-  void DidCreateNewRendererCompositorFrameSink(
-      cc::mojom::MojoCompositorFrameSinkClient* renderer_compositor_frame_sink)
-      override;
+  void DidCreateNewRendererCompositorFrameSink() override;
   void SubmitCompositorFrame(const cc::LocalSurfaceId& local_surface_id,
                              cc::CompositorFrame frame) override;
   void OnBeginFrameDidNotSwap(const cc::BeginFrameAck& ack) override;
@@ -259,8 +257,6 @@ class CONTENT_EXPORT RenderWidgetHostViewChildFrame
   cc::FrameSinkId parent_frame_sink_id_;
 
   bool has_frame_ = false;
-  cc::mojom::MojoCompositorFrameSinkClient* renderer_compositor_frame_sink_ =
-      nullptr;
 
   // The background color of the widget.
   SkColor background_color_;