Allow RenderFrames to swap out for subframe navigations.

content/browser/frame_host/render_frame_host_manager.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_BROWSER_FRAME_HOST_RENDER_FRAME_HOST_MANAGER_H_
 #define CONTENT_BROWSER_FRAME_HOST_RENDER_FRAME_HOST_MANAGER_H_
 
 #include "base/basictypes.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 172 matching lines @@
 
   // Whether to close the tab or not when there is a hang during an unload
   // handler. If we are mid-crosssite navigation, then we should proceed
   // with the navigation instead of closing the tab.
   bool ShouldCloseTabOnUnresponsiveRenderer();
 
   // The RenderViewHost has been swapped out, so we should resume the pending
   // network response and allow the pending RenderViewHost to commit.
   void SwappedOut(RenderViewHost* render_view_host);
 
+  // The RenderFrameHost has been swapped out, so we should resume the pending
+  // network response and allow the pending RenderFrameHost to commit.
+  void SwappedOutFrame(RenderFrameHostImpl* render_frame_host);
+
   // Called when a renderer's main frame navigates.
   void DidNavigateMainFrame(RenderViewHost* render_view_host);
 
   // Called when a renderer sets its opener to null.
   void DidDisownOpener(RenderViewHost* render_view_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.
   // Otherwise, it will be used for a pending cross-site navigation.
   int CreateRenderFrame(SiteInstance* instance,
@@ skipping 235 matching lines @@
   InterstitialPageImpl* interstitial_page_;
 
   NotificationRegistrar registrar_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderFrameHostManager);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_FRAME_HOST_RENDER_FRAME_HOST_MANAGER_H_