Move ExtensionUninstallDialog into extensions namespace

chrome/browser/ui/webui/ntp/app_launcher_handler.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/ui/webui/ntp/app_launcher_handler.h"
 
 #include <vector>
 
 #include "apps/metrics_names.h"
 #include "base/auto_reset.h"
@@ skipping 816 matching lines @@
   std::string histogram_name = user_initiated ?
       "Extensions.Permissions_ReEnableCancel" :
       "Extensions.Permissions_ReEnableAbort";
   ExtensionService::RecordPermissionMessagesHistogram(
       extension, histogram_name.c_str());
 
   extension_enable_flow_.reset();
   CleanupAfterUninstall();
 }
 
-ExtensionUninstallDialog* AppLauncherHandler::GetExtensionUninstallDialog() {
+extensions::ExtensionUninstallDialog*
+AppLauncherHandler::GetExtensionUninstallDialog() {
   if (!extension_uninstall_dialog_.get()) {
     Browser* browser = chrome::FindBrowserWithWebContents(
         web_ui()->GetWebContents());
     extension_uninstall_dialog_.reset(
-        ExtensionUninstallDialog::Create(extension_service_->profile(),
-                                         browser, this));
+        extensions::ExtensionUninstallDialog::Create(
+            extension_service_->profile(), browser, this));
   }
   return extension_uninstall_dialog_.get();
 }