Fix up unused includes from chrome/browser/extensions to the rest of chrome/browser.

chrome/browser/extensions/browser_extension_window_controller.cc

 // 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.
 
 #include "chrome/browser/extensions/browser_extension_window_controller.h"
 
 #include "chrome/browser/extensions/api/tabs/tabs_constants.h"
 #include "chrome/browser/extensions/extension_tab_util.h"
 #include "chrome/browser/extensions/window_controller_list.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/sessions/session_id.h"
 #include "chrome/browser/ui/browser.h"
-#include "chrome/browser/ui/browser_tabstrip.h"
 #include "chrome/browser/ui/browser_window.h"
 #include "chrome/browser/ui/tabs/tab_strip_model.h"
 #include "chrome/common/extensions/extension.h"
 
 BrowserExtensionWindowController::BrowserExtensionWindowController(
     Browser* browser)
     : extensions::WindowController(browser->window(), browser->profile()),
       browser_(browser) {
   extensions::WindowControllerList::GetInstance()->AddExtensionWindow(this);
 }
@@ skipping 62 matching lines @@
 
 Browser* BrowserExtensionWindowController::GetBrowser() const {
   return browser_;
 }
 
 bool BrowserExtensionWindowController::IsVisibleToExtension(
     const extensions::Extension* extension) const {
   // Platform apps can only see their own windows.
   return !extension->is_platform_app();
 }