Rename UI_API to UI_EXPORT.

ui/gfx/screen.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.
 
 #ifndef UI_GFX_SCREEN_H_
 #define UI_GFX_SCREEN_H_
 #pragma once
 
 #include "ui/gfx/native_widget_types.h"
 #include "ui/gfx/point.h"
 #include "ui/gfx/rect.h"
 
 namespace gfx {
 
 // A utility class for getting various info about screen size, monitors,
 // cursor position, etc.
 // TODO(erikkay) add more of those methods here
-class UI_API Screen {
+class UI_EXPORT Screen {
  public:
   static gfx::Point GetCursorScreenPoint();
 
   // Returns the work area of the monitor nearest the specified window.
   static gfx::Rect GetMonitorWorkAreaNearestWindow(gfx::NativeView view);
 
   // Returns the bounds of the monitor nearest the specified window.
   static gfx::Rect GetMonitorAreaNearestWindow(gfx::NativeView view);
 
   // Returns the work area of the monitor nearest the specified point.
   static gfx::Rect GetMonitorWorkAreaNearestPoint(const gfx::Point& point);
 
   // Returns the monitor area (not the work area, but the complete bounds) of
   // the monitor nearest the specified point.
   static gfx::Rect GetMonitorAreaNearestPoint(const gfx::Point& point);
 
   // Returns the window under the cursor.
   static gfx::NativeWindow GetWindowAtCursorScreenPoint();
 };
 
 }  // namespace gfx
 
 #endif  // VIEWS_SCREEN_H_