ui/base: Move message_box_win.{h,cc} to ui/base/win.

chrome/browser/extensions/extensions_startup.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/extensions_startup.h"
 
 #include "base/string_util.h"
 #include "base/stringprintf.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/chrome_switches.h"
 
 #if defined(OS_WIN)
-#include "ui/base/message_box_win.h"
+#include "ui/base/win/message_box_win.h"
 #endif
 
 ExtensionsStartupUtil::ExtensionsStartupUtil() : pack_job_succeeded_(false) {}
 
 void ExtensionsStartupUtil::OnPackSuccess(
     const FilePath& crx_path,
     const FilePath& output_private_key_path) {
   pack_job_succeeded_ = true;
   ShowPackExtensionMessage(
       L"Extension Packaging Success",
@@ skipping 57 matching lines @@
   std::string extension_id = cmd_line.GetSwitchValueASCII(
       switches::kUninstallExtension);
   return ExtensionService::UninstallExtensionHelper(extension_service,
                                                     extension_id);
 }
 
 ExtensionsStartupUtil::~ExtensionsStartupUtil() {
   if (pack_job_.get())
     pack_job_->ClearClient();
 }