Switch Extensions::TabHelper to use WebContents, WebContentsUserData.

chrome/browser/ui/tab_contents/tab_contents.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_UI_TAB_CONTENTS_TAB_CONTENTS_H_
 #define CHROME_BROWSER_UI_TAB_CONTENTS_TAB_CONTENTS_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
@@ skipping 86 matching lines @@
 namespace chrome_browser_net {
 class LoadTimeStatsTabHelper;
 }
 
 namespace chromeos {
 class SimpleWebViewDialog;
 class WebUILoginView;
 }
 
 namespace extensions {
-class TabHelper;
 class WebAuthFlow;
 class WebNavigationTabObserver;
 }
 
 namespace prerender {
 class PrerenderContents;
 class PrerenderTabHelper;
 }
 
 namespace printing {
@@ skipping 111 matching lines @@
     return captive_portal_tab_helper_.get();
   }
 #endif
 
   ConstrainedWindowTabHelper* constrained_window_tab_helper() {
     return constrained_window_tab_helper_.get();
   }
 
   CoreTabHelper* core_tab_helper() { return core_tab_helper_.get(); }
 
-  extensions::TabHelper* extension_tab_helper() {
-    return extension_tab_helper_.get();
-  }
-
-  const extensions::TabHelper* extension_tab_helper() const {
-    return extension_tab_helper_.get();
-  }
-
   FaviconTabHelper* favicon_tab_helper() { return favicon_tab_helper_.get(); }
   FindTabHelper* find_tab_helper() { return find_tab_helper_.get(); }
   HistoryTabHelper* history_tab_helper() { return history_tab_helper_.get(); }
   HungPluginTabHelper* hung_plugin_tab_helper() {
     return hung_plugin_tab_helper_.get();
   }
   InfoBarTabHelper* infobar_tab_helper() { return infobar_tab_helper_.get(); }
 
 #if defined(ENABLE_ONE_CLICK_SIGNIN)
   OneClickSigninHelper* one_click_signin_helper() {
@@ skipping 80 matching lines @@
   scoped_ptr<AutomationTabHelper> automation_tab_helper_;
   scoped_ptr<BlockedContentTabHelper> blocked_content_tab_helper_;
   scoped_ptr<BookmarkTabHelper> bookmark_tab_helper_;
   scoped_ptr<chrome_browser_net::LoadTimeStatsTabHelper>
   load_time_stats_tab_helper_;
 #if defined(ENABLE_CAPTIVE_PORTAL_DETECTION)
   scoped_ptr<captive_portal::CaptivePortalTabHelper> captive_portal_tab_helper_;
 #endif
   scoped_ptr<ConstrainedWindowTabHelper> constrained_window_tab_helper_;
   scoped_ptr<CoreTabHelper> core_tab_helper_;
-  scoped_ptr<extensions::TabHelper> extension_tab_helper_;
   scoped_ptr<FaviconTabHelper> favicon_tab_helper_;
   scoped_ptr<FindTabHelper> find_tab_helper_;
   scoped_ptr<HistoryTabHelper> history_tab_helper_;
   scoped_ptr<HungPluginTabHelper> hung_plugin_tab_helper_;
   scoped_ptr<InfoBarTabHelper> infobar_tab_helper_;
 
   // PasswordManager and its delegate. The delegate must outlive the manager,
   // per documentation in password_manager.h.
   scoped_ptr<PasswordManagerDelegate> password_manager_delegate_;
   scoped_ptr<PasswordManager> password_manager_;
@@ skipping 49 matching lines @@
 
   // The supporting objects need to outlive the WebContents dtor (as they may
   // be called upon during its execution). As a result, this must come last
   // in the list.
   scoped_ptr<content::WebContents> web_contents_;
 
   DISALLOW_COPY_AND_ASSIGN(TabContents);
 };
 
 #endif  // CHROME_BROWSER_UI_TAB_CONTENTS_TAB_CONTENTS_H_