Remove some TabContentses from extensions.

chrome/browser/extensions/api/tabs/tabs.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_API_TABS_TABS_H__
 #define CHROME_BROWSER_EXTENSIONS_API_TABS_TABS_H__
 
 #include <string>
 #include <vector>
 
 #include "base/compiler_specific.h"
 #include "chrome/browser/extensions/extension_function.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "googleurl/src/gurl.h"
 
 class BackingStore;
 class GURL;
 class PrefService;
 class SkBitmap;
-class TabContents;
 
 namespace base {
 class DictionaryValue;
 }
 
 namespace content {
 class WebContents;
 }
 
 namespace skia {
@@ skipping 91 matching lines @@
  public:
   UpdateTabFunction();
 
  protected:
   virtual ~UpdateTabFunction() {}
   virtual bool UpdateURLIfPresent(base::DictionaryValue* update_props,
                                   int tab_id,
                                   bool* is_async);
   virtual void PopulateResult();
 
-  TabContents* tab_contents_;
+  content::WebContents* web_contents_;
 
  private:
   virtual bool RunImpl() OVERRIDE;
   void OnExecuteCodeFinished(const std::string& error,
                              int32 on_page_id,
                              const GURL& on_url,
                              const ListValue& script_result);
 
   DECLARE_EXTENSION_FUNCTION_NAME("tabs.update")
 };
@@ skipping 56 matching lines @@
   // The format (JPEG vs PNG) of the resulting image.  Set in RunImpl().
   ImageFormat image_format_;
 
   // Quality setting to use when encoding jpegs.  Set in RunImpl().
   int image_quality_;
 
   DECLARE_EXTENSION_FUNCTION_NAME("tabs.captureVisibleTab")
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_TABS_TABS_H__