Revert of Unify desktop and Android tab helper instantiation.

chrome/browser/android/tab_android.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_ANDROID_TAB_ANDROID_H_
 #define CHROME_BROWSER_ANDROID_TAB_ANDROID_H_
 
 #include <jni.h>
 
 #include "base/android/jni_helper.h"
@@ skipping 86 matching lines @@
                             bool is_folder,
                             bool is_partner_bookmark);
 
   // Called to notify that the new tab page has completely rendered.
   virtual void OnNewTabPageReady();
 
   // Called to determine if chrome://welcome should contain links to the terms
   // of service and the privacy notice.
   virtual bool ShouldWelcomePageLinkToTermsOfService();
 
+  static void InitTabHelpers(content::WebContents* web_contents);
+
   // Register the Tab's native methods through JNI.
   static bool RegisterTabAndroid(JNIEnv* env);
 
   // CoreTabHelperDelegate ----------------------------------------------------
 
   virtual void SwapTabContents(content::WebContents* old_contents,
                                content::WebContents* new_contents) OVERRIDE;
 
   // NotificationObserver -----------------------------------------------------
   virtual void Observe(int type,
@@ skipping 33 matching lines @@
   scoped_ptr<content::WebContents> web_contents_;
   scoped_ptr<chrome::android::ChromeWebContentsDelegateAndroid>
       web_contents_delegate_;
 
   scoped_ptr<browser_sync::SyncedTabDelegateAndroid> synced_tab_delegate_;
 
   DISALLOW_COPY_AND_ASSIGN(TabAndroid);
 };
 
 #endif  // CHROME_BROWSER_ANDROID_TAB_ANDROID_H_