Rename OS(WINDOWS) to OS(WIN)

Source/core/platform/chromium/KeyboardCodes.h

 /*
  * Copyright (c) 2008, 2009, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 13 matching lines @@
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef KeyboardCodes_h
 #define KeyboardCodes_h
 
-#if OS(WINDOWS)
+#if OS(WIN)
 #include <windows.h>
 #endif
 
 #include "core/platform/WindowsKeyboardCodes.h"
 
 namespace WebCore {
 
     enum {
         // VKEY_LBUTTON (01) Left mouse button
         // VKEY_RBUTTON (02) Right mouse button
@@ skipping 507 matching lines @@
 
         // VKEY_OEM_CLEAR (FE) Clear key
         VKEY_OEM_CLEAR = VK_OEM_CLEAR,
 
         VKEY_UNKNOWN = 0
     };
 
 } // namespace WebCore
 
 #endif