Remove TabContents from TabStripModelObserver::ActiveTabChanged.

chrome/browser/extensions/browser_event_router.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_EXTENSIONS_BROWSER_EVENT_ROUTER_H_
 #define CHROME_BROWSER_EXTENSIONS_BROWSER_EVENT_ROUTER_H_
 
 #include <map>
 #include <string>
 
@@ skipping 30 matching lines @@
   virtual void OnBrowserSetLastActive(Browser* browser) OVERRIDE;
 
   // TabStripModelObserver
   virtual void TabInsertedAt(content::WebContents* contents, int index,
                              bool active) OVERRIDE;
   virtual void TabClosingAt(TabStripModel* tab_strip_model,
                             content::WebContents* contents,
                             int index) OVERRIDE;
   virtual void TabDetachedAt(content::WebContents* contents,
                              int index) OVERRIDE;
-  virtual void ActiveTabChanged(TabContents* old_contents,
-                                TabContents* new_contents,
+  virtual void ActiveTabChanged(content::WebContents* old_contents,
+                                content::WebContents* new_contents,
                                 int index,
                                 bool user_gesture) OVERRIDE;
   virtual void TabSelectionChanged(
       TabStripModel* tab_strip_model,
       const TabStripSelectionModel& old_model) OVERRIDE;
   virtual void TabMoved(TabContents* contents, int from_index,
                         int to_index) OVERRIDE;
   virtual void TabChangedAt(TabContents* contents, int index,
                             TabChangeType change_type) OVERRIDE;
   virtual void TabReplacedAt(TabStripModel* tab_strip_model,
@@ skipping 138 matching lines @@
 
   // The main profile that owns this event router.
   Profile* profile_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserEventRouter);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_BROWSER_EVENT_ROUTER_H_