[Extensions OOPI] Update app window bindings for OOPI

content/public/renderer/render_frame.h

Index: content/public/renderer/render_frame.h
diff --git a/content/public/renderer/render_frame.h b/content/public/renderer/render_frame.h
index 68da7d95e1dd87473fd01061862b3bf926ea63b7..6627363e0c0ad8abf334fa410b823d85f5800207 100644
--- a/content/public/renderer/render_frame.h
+++ b/content/public/renderer/render_frame.h
@@ -55,6 +55,9 @@ class CONTENT_EXPORT RenderFrame : public IPC::Listener,
   // Returns the RenderFrame given a WebFrame.
   static RenderFrame* FromWebFrame(blink::WebFrame* web_frame);
 
+  // Returns the RenderFrame given a routing id.
+  static RenderFrame* FromRoutingID(int routing_id);
+
   // Returns the RenderView associated with this frame.
   virtual RenderView* GetRenderView() = 0;