If a RemoteFrame asks to navigate, send an OpenURL IPC

content/browser/frame_host/render_frame_host_impl.h

Index: content/browser/frame_host/render_frame_host_impl.h
diff --git a/content/browser/frame_host/render_frame_host_impl.h b/content/browser/frame_host/render_frame_host_impl.h
index 341651a0c1cd9b76e4a8f77252335f6739ca3989..604eb75a33c441b988672eae7d51145aea3c85aa 100644
--- a/content/browser/frame_host/render_frame_host_impl.h
+++ b/content/browser/frame_host/render_frame_host_impl.h
@@ -252,6 +252,11 @@ class CONTENT_EXPORT RenderFrameHostImpl
   // Load the specified URL; this is a shortcut for Navigate().
   void NavigateToURL(const GURL& url);
 
+  // Treat this prospective navigation as thought it originated from the
+  // frame. Used, e.g., for a navigation request that originated from
+  // a RemoteFrame.
+  void OpenURL(const FrameHostMsg_OpenURL_Params& params);
+
   // Stop the load in progress.
   void Stop();