Pass RenderFrameHost to WebContentObservers' message handlers

content/public/browser/web_contents_observer.cc

Index: content/public/browser/web_contents_observer.cc
diff --git a/content/public/browser/web_contents_observer.cc b/content/public/browser/web_contents_observer.cc
index fc0fcf253ac64657075472ac2775f34f442d9431..046ff0bcf10ccd85d797b69aa135d6d08d6c1c96 100644
--- a/content/public/browser/web_contents_observer.cc
+++ b/content/public/browser/web_contents_observer.cc
@@ -41,6 +41,11 @@ void WebContentsObserver::Observe(WebContents* web_contents) {
   }
 }
 
+bool WebContentsObserver::OnMessageReceived(RenderFrameHost* render_frame_host,
+                                            const IPC::Message& message) {
+  return OnMessageReceived(message);
+}
+
 bool WebContentsObserver::OnMessageReceived(const IPC::Message& message) {
   return false;
 }