Avoid stale navigation requests without excessive page id knowledge in the renderer process.

content/renderer/render_frame_impl.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_RENDERER_RENDER_FRAME_IMPL_H_
 #define CONTENT_RENDERER_RENDER_FRAME_IMPL_H_
 
 #include <vector>
 
 #include "base/basictypes.h"
@@ skipping 644 matching lines @@
   // Creates a factory object used for creating audio and video renderers.
   // The method is virtual so that layouttests can override it.
   virtual scoped_ptr<MediaStreamRendererFactory> CreateRendererFactory();
 
   // Checks that the RenderView is ready to display the navigation to |url|. If
   // the return value is false, the navigation should be abandoned.
   bool PrepareRenderViewForNavigation(
       const GURL& url,
       FrameMsg_Navigate_Type::Value navigate_type,
       const PageState& state,
-      bool check_history,
-      int pending_history_list_offset,
+      bool check_for_stale_navigation,
+      bool is_history_navigation,
+      int current_history_list_offset,
       int32 page_id,
       bool* is_reload,
       blink::WebURLRequest::CachePolicy* cache_policy);
 
   // PlzNavigate
   // Sends a FrameHostMsg_BeginNavigation to the browser based on the contents
   // of the WebURLRequest.
   void BeginNavigation(blink::WebURLRequest* request);
 
   // Returns the URL being loaded by the |frame_|'s request.
@@ skipping 138 matching lines @@
 #endif
 
   base::WeakPtrFactory<RenderFrameImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderFrameImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_RENDER_FRAME_IMPL_H_