Introduce ui.dll / libui.so for the component build.

ui/gfx/native_theme_win.h

 // 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.
 //
 // A wrapper class for working with custom XP/Vista themes provided in
 // uxtheme.dll.  This is a singleton class that can be grabbed using
 // NativeThemeWin::instance().
 // For more information on visual style parts and states, see:
 // http://msdn.microsoft.com/library/default.asp?url=/library/en-us/shellcc/platform/commctls/userex/topics/partsandstates.asp
 
 #ifndef UI_GFX_NATIVE_THEME_WIN_H_
 #define UI_GFX_NATIVE_THEME_WIN_H_
 #pragma once
 
+#include <windows.h>
+#include <uxtheme.h>
+
+#include "base/basictypes.h"
+#include "third_party/skia/include/core/SkColor.h"
 #include "ui/gfx/native_theme.h"
 #include "ui/gfx/size.h"
-#include <windows.h>
-#include <uxtheme.h>
-#include "base/basictypes.h"
-#include "third_party/skia/include/core/SkColor.h"
 
 class SkCanvas;
 
 namespace gfx {
 
 // Windows implementation of native theme class.
 //
 // At the moment, this class in in transition from an older API that consists
 // of several PaintXXX methods to an API, inherited from the NativeTheme base
 // class, that consists of a single Paint() method with a argument to indicate
 // what kind of part to paint.
-class NativeThemeWin : public NativeTheme {
+class UI_API NativeThemeWin : public NativeTheme {
  public:
   enum ThemeName {
     BUTTON,
     LIST,
     MENU,
     MENULIST,
     SCROLLBAR,
     STATUS,
     TAB,
     TEXTFIELD,
@@ skipping 276 matching lines @@
 
   // A cache of open theme handles.
   mutable HANDLE theme_handles_[LAST];
 
   DISALLOW_COPY_AND_ASSIGN(NativeThemeWin);
 };
 
 }  // namespace gfx
 
 #endif  // UI_GFX_NATIVE_THEME_WIN_H_