Remove UserScript support, which is not used by Chromium

Source/WebCore/page/UserScriptTypes.h

Index: Source/WebCore/page/UserScriptTypes.h
diff --git a/Source/WebCore/page/UserScriptTypes.h b/Source/WebCore/page/UserScriptTypes.h
deleted file mode 100644
index 6b0c037a178c42eeb2c97bd4ab28f5379473f9fe..0000000000000000000000000000000000000000
--- a/Source/WebCore/page/UserScriptTypes.h
+++ /dev/null
@@ -1,44 +0,0 @@
-/*
- * Copyright (C) 2009 Apple 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
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 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 UserScriptTypes_h
-#define UserScriptTypes_h
-
-#include <wtf/HashMap.h>
-#include <wtf/Vector.h>
-
-namespace WebCore {
-
-enum UserScriptInjectionTime { InjectAtDocumentStart, InjectAtDocumentEnd };
-
-class DOMWrapperWorld;
-class UserScript;
-
-typedef Vector<OwnPtr<UserScript> > UserScriptVector;
-typedef HashMap<RefPtr<DOMWrapperWorld>, OwnPtr<UserScriptVector> > UserScriptMap;
-
-} // namespace WebCore
- 
-#endif // UserScriptTypes_h