Revert "Transition modules/** to use ExceptionState"

Source/modules/crypto/AesKeyGenParams.h

 /*
  * Copyright (C) 2013 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 18 matching lines @@
  */
 
 #ifndef AesKeyGenParams_h
 #define AesKeyGenParams_h
 
 #include "modules/crypto/Algorithm.h"
 #include "public/platform/WebCryptoAlgorithm.h"
 
 namespace WebCore {
 
+typedef int ExceptionCode;
+
 class AesKeyGenParams : public Algorithm {
 public:
     static PassRefPtr<AesKeyGenParams> create(const WebKit::WebCryptoAlgorithm& algorithm) { return adoptRef(new AesKeyGenParams(algorithm)); }
 
     unsigned short length() const;
 
 private:
     explicit AesKeyGenParams(const WebKit::WebCryptoAlgorithm&);
 };
 
 } // namespace WebCore
 
 #endif