Create CoreTabHelper, move remaining core TCW functionality into it.

chrome/browser/extensions/extension_tab_helper.cc

 // 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.
 
 #include "chrome/browser/extensions/extension_tab_helper.h"
 
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/webstore_inline_installer.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/sessions/restore_tab_helper.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_list.h"
 #include "chrome/browser/ui/tab_contents/tab_contents_wrapper.h"
-#include "chrome/browser/ui/tab_contents/tab_contents_wrapper_delegate.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "chrome/common/extensions/extension_action.h"
 #include "chrome/common/extensions/extension_constants.h"
 #include "chrome/common/extensions/extension_icon_set.h"
 #include "chrome/common/extensions/extension_messages.h"
 #include "chrome/common/extensions/extension_resource.h"
 #include "content/browser/renderer_host/render_view_host.h"
 #include "content/browser/renderer_host/render_widget_host_view.h"
 #include "content/browser/tab_contents/navigation_details.h"
 #include "content/browser/tab_contents/tab_contents.h"
@@ skipping 255 matching lines @@
 }
 
 TabContents* ExtensionTabHelper::GetAssociatedTabContents() const {
   return tab_contents();
 }
 
 gfx::NativeView ExtensionTabHelper::GetNativeViewOfHost() {
   RenderWidgetHostView* rwhv = tab_contents()->GetRenderWidgetHostView();
   return rwhv ? rwhv->GetNativeView() : NULL;
 }