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 4ca45465a893d4baef082852fc331a7f6a924c31..11461175eb872a733d6f9970f69d98864611de99 100644
--- a/content/browser/frame_host/render_frame_host_manager.h
+++ b/content/browser/frame_host/render_frame_host_manager.h
@@ -252,14 +252,11 @@ class CONTENT_EXPORT RenderFrameHostManager : public NotificationObserver {
   // Called when a renderer sets its opener to null.
   void DidDisownOpener(RenderFrameHost* render_frame_host);
 
-  // Helper method to create and initialize a RenderFrameHost.  If |swapped_out|
-  // is true, it will be initially placed on the swapped out hosts list.
+  // Helper method to create and initialize a RenderFrameHost.
   // Returns the routing id of the *view* associated with the frame.
   int CreateRenderFrame(SiteInstance* instance,
                         int opener_route_id,
-                        bool swapped_out,
-                        bool for_main_frame_navigation,
-                        bool hidden);
+                        int flags);
 
   // Helper method to create and initialize a RenderFrameProxyHost and return
   // its routing id.
@@ -412,8 +409,7 @@ class CONTENT_EXPORT RenderFrameHostManager : public NotificationObserver {
   scoped_ptr<RenderFrameHostImpl> CreateRenderFrameHost(SiteInstance* instance,
                                                         int view_routing_id,
                                                         int frame_routing_id,
-                                                        bool swapped_out,
-                                                        bool hidden);
+                                                        int flags);
 
   // Sets up the necessary state for a new RenderViewHost with the given opener,
   // if necessary.  It creates a RenderFrameProxy in the target renderer process