Move UI-relevant Windows files to ui/base.

app/win/hwnd_util.h

-// Copyright (c) 2010 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_
-#pragma once
-
-#include <windows.h>
-
-#include "base/string16.h"
-
-namespace gfx {
-class Size;
-}
-
-namespace app {
-namespace win {
-
-// 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
-
-#endif  // APP_WIN_HWND_UTIL_H_