Handle odd data lengths in UTF-16 decoder

Source/wtf/text/TextCodecUserDefined.cpp

 /*
  * 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 31 matching lines @@
 static PassOwnPtr<TextCodec> newStreamingTextDecoderUserDefined(const TextEncoding&, const void*)
 {
     return adoptPtr(new TextCodecUserDefined);
 }
 
 void TextCodecUserDefined::registerCodecs(TextCodecRegistrar registrar)
 {
     registrar("x-user-defined", newStreamingTextDecoderUserDefined, 0);
 }
 
-String TextCodecUserDefined::decode(const char* bytes, size_t length, bool, bool, bool&)
+String TextCodecUserDefined::decode(const char* bytes, size_t length, FlushBehavior, bool, bool&)
 {
     StringBuilder result;
     result.reserveCapacity(length);
 
     for (size_t i = 0; i < length; ++i) {
         signed char c = bytes[i];
         result.append(static_cast<UChar>(c & 0xF7FF));
     }
 
     return result.toString();
@@ skipping 51 matching lines @@
 {
     return encodeCommon(characters, length, handling);
 }
 
 CString TextCodecUserDefined::encode(const LChar* characters, size_t length, UnencodableHandling handling)
 {
     return encodeCommon(characters, length, handling);
 }
 
 } // namespace WTF