Remove last dependencies on ui/base from ui/gfx

ui/gfx/win/window_impl.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_GFX_WIN_WINDOW_IMPL_H_
 #define UI_GFX_WIN_WINDOW_IMPL_H_
 
 #include <atlbase.h>
 #include <atlapp.h>
 #include <atlmisc.h>
@@ skipping 22 matching lines @@
 };
 
 ///////////////////////////////////////////////////////////////////////////////
 //
 // WindowImpl
 //  A convenience class that encapsulates the details of creating and
 //  destroying a HWND.  This class also hosts the windows procedure used by all
 //  Windows.
 //
 ///////////////////////////////////////////////////////////////////////////////
-class UI_EXPORT WindowImpl : public MessageMapInterface {
+class GFX_EXPORT WindowImpl : public MessageMapInterface {
  public:
   WindowImpl();
   virtual ~WindowImpl();
 
   // Initializes the Window with a parent and an initial desired size.
   void Init(HWND parent, const gfx::Rect& bounds);
 
   // Returns the default window icon to use for windows of this type.
   virtual HICON GetDefaultWindowIcon() const;
 
@@ skipping 60 matching lines @@
   bool got_create_;
   bool got_valid_hwnd_;
   bool* destroyed_;
 
   DISALLOW_COPY_AND_ASSIGN(WindowImpl);
 };
 
 }  // namespace gfx
 
 #endif  // UI_GFX_WIN_WINDOW_IMPL_H_