Make the Remove Extension dialog modal for win app list.

chrome/browser/ui/app_list/app_list_service_disabled.cc

 // Copyright 2013 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 "base/files/file_path.h"
 #include "base/memory/singleton.h"
 #include "chrome/browser/ui/app_list/app_list_service.h"
 
 namespace {
 
@@ skipping 25 matching lines @@
     const base::FilePath& profile_file_path) OVERRIDE {}
 
   virtual Profile* GetCurrentAppListProfile() OVERRIDE { return NULL; }
   virtual bool IsAppListVisible() const OVERRIDE { return false; }
   virtual void EnableAppList() OVERRIDE {}
 
   virtual AppListControllerDelegate* CreateControllerDelegate() OVERRIDE {
     return NULL;
   }
 
+  virtual gfx::NativeWindow GetAppListWindow() OVERRIDE {
+    return NULL;
+  }
+
   DISALLOW_COPY_AND_ASSIGN(AppListServiceDisabled);
 };
 
 }  // namespace
 
 // static
 AppListService* AppListService::Get() {
   return AppListServiceDisabled::GetInstance();
 }
 
 // static
 void AppListService::InitAll(Profile* initial_profile) {}
 
 // static
 void AppListService::RegisterPrefs(PrefRegistrySimple* registry) {}
 
 // static
 void AppListService::RecordShowTimings(const CommandLine& command_line) {}