ui: Use base::MessageLoop.

ui/views/win/hwnd_message_handler.h

 // 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.
 
 #ifndef UI_VIEWS_WIN_HWND_MESSAGE_HANDLER_H_
 #define UI_VIEWS_WIN_HWND_MESSAGE_HANDLER_H_
 
 #include <atlbase.h>
 #include <atlapp.h>
 #include <atlmisc.h>
@@ skipping 37 matching lines @@
 // from happening.
 const int WM_NCUAHDRAWCAPTION = 0xAE;
 const int WM_NCUAHDRAWFRAME = 0xAF;
 
 // An object that handles messages for a HWND that implements the views
 // "Custom Frame" look. The purpose of this class is to isolate the windows-
 // specific message handling from the code that wraps it. It is intended to be
 // used by both a views::NativeWidget and an aura::RootWindowHost
 // implementation.
 // TODO(beng): This object should eventually *become* the WindowImpl.
-class VIEWS_EXPORT HWNDMessageHandler : public ui::WindowImpl,
-                                        public internal::InputMethodDelegate,
-                                        public MessageLoopForUI::Observer {
+class VIEWS_EXPORT HWNDMessageHandler :
+    public ui::WindowImpl,
+    public internal::InputMethodDelegate,
+    public base::MessageLoopForUI::Observer {
  public:
   explicit HWNDMessageHandler(HWNDMessageHandlerDelegate* delegate);
   ~HWNDMessageHandler();
 
   void Init(HWND parent, const gfx::Rect& bounds);
   void InitModalType(ui::ModalType modal_type);
 
   void Close();
   void CloseNow();
 
@@ skipping 383 matching lines @@
 
   // True the first time nccalc is called on a sizable widget
   bool is_first_nccalc_;
 
   DISALLOW_COPY_AND_ASSIGN(HWNDMessageHandler);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_WIN_HWND_MESSAGE_HANDLER_H_