Make WebContentsObserver::web_contents() public

chrome/browser/prerender/prerender_manager.h

 // Copyright (c) 2012 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 CHROME_BROWSER_PRERENDER_PRERENDER_MANAGER_H_
 #define CHROME_BROWSER_PRERENDER_PRERENDER_MANAGER_H_
 
 #include <list>
 #include <map>
 #include <string>
@@ skipping 460 matching lines @@
   // delayed, and handles all conditions which would cancel a pending swap.
   class PendingSwap : public content::WebContentsObserver {
    public:
     PendingSwap(PrerenderManager* manager,
                 content::WebContents* target_contents,
                 PrerenderData* prerender_data,
                 const GURL& url,
                 bool should_replace_current_entry);
     virtual ~PendingSwap();
 
-    content::WebContents* target_contents() const;
     void set_swap_successful(bool swap_successful) {
       swap_successful_ = swap_successful;
     }
 
     void BeginSwap();
 
     // content::WebContentsObserver implementation.
     virtual void AboutToNavigateRenderView(
         content::RenderViewHost* render_view_host) OVERRIDE;
     virtual void ProvisionalChangeToMainFrameUrl(
@@ skipping 261 matching lines @@
   bool cookie_store_loaded_;
 
   base::Closure on_cookie_store_loaded_cb_for_testing_;
 
   DISALLOW_COPY_AND_ASSIGN(PrerenderManager);
 };
 
 }  // namespace prerender
 
 #endif  // CHROME_BROWSER_PRERENDER_PRERENDER_MANAGER_H_