Remove redefinitions of ExceptionCode.

third_party/WebKit/Source/core/dom/DOMException.h

 /*
  * Copyright (C) 2007, 2008 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
@@ skipping 13 matching lines @@
  * 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 DOMException_h
 #define DOMException_h
 
 #include "bindings/core/v8/ScriptWrappable.h"
 #include "core/CoreExport.h"
+#include "core/dom/ExceptionCode.h"
 #include "platform/heap/Handle.h"
 #include "wtf/Forward.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink {
 
-typedef int ExceptionCode;
-
 class CORE_EXPORT DOMException final
     : public GarbageCollectedFinalized<DOMException>,
       public ScriptWrappable {
   DEFINE_WRAPPERTYPEINFO();
 
  public:
   static DOMException* create(ExceptionCode,
                               const String& sanitizedMessage = String(),
                               const String& unsanitizedMessage = String());
 
@@ skipping 29 matching lines @@
 
   unsigned short m_code;
   String m_name;
   String m_sanitizedMessage;
   String m_unsanitizedMessage;
 };
 
 }  // namespace blink
 
 #endif  // DOMException_h