Make RenderFrame(Host) own a RenderWidget(Host).

content/browser/frame_host/render_frame_host_manager.h

Index: content/browser/frame_host/render_frame_host_manager.h
diff --git a/content/browser/frame_host/render_frame_host_manager.h b/content/browser/frame_host/render_frame_host_manager.h
index d902c9edef179500d5d68635974b4e2deb381187..cc2e2d840dc57bf92d32d53b482e66d46a4b613a 100644
--- a/content/browser/frame_host/render_frame_host_manager.h
+++ b/content/browser/frame_host/render_frame_host_manager.h
@@ -490,8 +490,10 @@ class CONTENT_EXPORT RenderFrameHostManager : public NotificationObserver {
   // we are staying in the same BrowsingInstance. This allows the new RFH
   // to send cross-process script calls to its opener(s). Returns the opener
   // route ID to be used for the new RenderView to be created.
+  // |create_render_frame_flags| allows the method to set additional flags.
   int CreateOpenerRenderViewsIfNeeded(SiteInstance* old_instance,
-                                      SiteInstance* new_instance);
+                                      SiteInstance* new_instance,
+                                      int* create_render_frame_flags);
 
   // Creates a RenderFrameHost and corresponding RenderViewHost if necessary.
   scoped_ptr<RenderFrameHostImpl> CreateRenderFrameHost(SiteInstance* instance,