Rename OS(WINDOWS) to OS(WIN)

Source/web/EditorClientImpl.cpp

 /*
  * Copyright (C) 2006, 2007 Apple, Inc.  All rights reserved.
  * Copyright (C) 2012 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 575 matching lines @@
     // which may be configured to do it so by user.
     // See also http://en.wikipedia.org/wiki/Keyboard_Layout
     // FIXME(ukai): investigate more detail for various keyboard layout.
     if (evt->keyEvent()->text().length() == 1) {
         UChar ch = evt->keyEvent()->text()[0U];
 
         // Don't insert null or control characters as they can result in
         // unexpected behaviour
         if (ch < ' ')
             return false;
-#if !OS(WINDOWS)
+#if !OS(WIN)
         // Don't insert ASCII character if ctrl w/o alt or meta is on.
         // On Mac, we should ignore events when meta is on (Command-<x>).
         if (ch < 0x80) {
             if (evt->keyEvent()->ctrlKey() && !evt->keyEvent()->altKey())
                 return false;
 #if OS(MACOSX)
             if (evt->keyEvent()->metaKey())
             return false;
 #endif
         }
@@ skipping 169 matching lines @@
 #endif
 }
 
 void EditorClientImpl::willSetInputMethodState()
 {
     if (m_webView->client())
         m_webView->client()->resetInputMethod();
 }
 
 } // namesace WebKit