Move UI-relevant Windows files to ui/base.

ui/base/win/hwnd_util.h

-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// 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.
 
-#ifndef APP_WIN_HWND_UTIL_H_
-#define APP_WIN_HWND_UTIL_H_
+#ifndef UI_BASE_WIN_HWND_UTIL_H_
+#define UI_BASE_WIN_HWND_UTIL_H_
 #pragma once
 
 #include <windows.h>
 
 #include "base/string16.h"
 
 namespace gfx {
 class Size;
 }
 
-namespace app {
-namespace win {
+namespace ui {
 
 // A version of the GetClassNameW API that returns the class name in an
 // string16. An empty result indicates a failure to get the class name.
 string16 GetClassName(HWND hwnd);
 
 // Useful for subclassing a HWND.  Returns the previous window procedure.
 WNDPROC SetWindowProc(HWND hwnd, WNDPROC wndproc);
 
 // Pointer-friendly wrappers around Get/SetWindowLong(..., GWLP_USERDATA, ...)
 // Returns the previously set value.
 void* SetWindowUserData(HWND hwnd, void* user_data);
 void* GetWindowUserData(HWND hwnd);
 
 // Returns true if the specified window is the current active top window or one
 // of its children.
 bool DoesWindowBelongToActiveWindow(HWND window);
 
 // Sizes the window to have a client or window size (depending on the value of
 // |pref_is_client|) of pref, then centers the window over parent, ensuring the
 // window fits on screen.
 void CenterAndSizeWindow(HWND parent,
                          HWND window,
                          const gfx::Size& pref,
                          bool pref_is_client);
 
 // Returns true if we are on Windows Vista or greater and composition is
 // enabled.
 bool ShouldUseVistaFrame();
 
-}  // namespace win
-}  // namespace app
+}  // namespace ui
 
-#endif  // APP_WIN_HWND_UTIL_H_
+#endif  // UI_BASE_WIN_HWND_UTIL_H_