Notifying the Out of Process Renderer about Visibility Change of a Remote Frame

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 78d0ea998a558f6483f05631b3e801ef4c17b3da..026b4d9e3dafcef486e6bfab76d46ec5a3880e55 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
@@ -159,6 +159,9 @@ class CONTENT_EXPORT RenderWidgetHostViewChildFrame
   // to Bind() to it.
   void SurfaceDrawn(uint32 output_surface_id, cc::SurfaceDrawStatus drawn);
 
+  // Called when the visibility is changed at the renderer side.
+  void SetVisibility(bool visible);
+
  protected:
   friend class RenderWidgetHostView;
   friend class RenderWidgetHostViewChildFrameTest;