TabContentsWrapper -> TabContents, part 1.

chrome/browser/extensions/extension_tab_helper_delegate.h

 // Copyright (c) 2011 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_EXTENSION_TAB_HELPER_DELEGATE_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_TAB_HELPER_DELEGATE_H_
 #pragma once
 
 #include "base/basictypes.h"
 
-class TabContentsWrapper;
+class TabContents;
+typedef TabContents TabContentsWrapper;
 struct WebApplicationInfo;
 
 // Objects implement this interface to get notified about changes in the
 // ExtensionTabHelper and to provide necessary functionality.
 class ExtensionTabHelperDelegate {
  public:
   // Notification that a user's request to install an application has completed.
   virtual void OnDidGetApplicationInfo(TabContentsWrapper* source,
                                        int32 page_id);
 
   // Notification when an application programmatically requests installation.
   virtual void OnInstallApplication(TabContentsWrapper* source,
                                     const WebApplicationInfo& app_info);
  protected:
   virtual ~ExtensionTabHelperDelegate();
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_TAB_HELPER_DELEGATE_H_