Implement ui_controls for aura

ui/aura/desktop_host_win.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 "ui/aura/desktop_host_win.h"
 
 #include <windows.h>
 
 #include <algorithm>
 
@@ skipping 212 matching lines @@
   const gfx::Size size = GetSize();
   return gfx::Point(max(0, min(size.width(), static_cast<int>(pt.x))),
                     max(0, min(size.height(), static_cast<int>(pt.y))));
 }
 
 void DesktopHostWin::PostNativeEvent(const base::NativeEvent& native_event) {
   ::PostMessage(
       hwnd(), native_event.message, native_event.wParam, native_event.lParam);
 }
 
+void DesktopHostWin::ConvertPointToNativeScreen(gfx::Point* point) const {
+  RECT r;
+  GetClientRect(hwnd(), &r);
+  point->Offset(r.left, r.top);
+}
+
 void DesktopHostWin::OnClose() {
   // TODO: this obviously shouldn't be here.
   MessageLoopForUI::current()->Quit();
 }
 
 LRESULT DesktopHostWin::OnKeyEvent(UINT message,
                                    WPARAM w_param,
                                    LPARAM l_param) {
   MSG msg = { hwnd(), message, w_param, l_param };
   KeyEvent keyev(msg, message == WM_CHAR);
@@ skipping 20 matching lines @@
 }
 
 void DesktopHostWin::OnSize(UINT param, const CSize& size) {
   // Minimizing resizes the window to 0x0 which causes our layout to go all
   // screwy, so we just ignore it.
   if (param != SIZE_MINIMIZED)
     desktop_->OnHostResized(gfx::Size(size.cx, size.cy));
 }
 
 }  // namespace aura