Do not normalize into NFC the values of form fields

Source/wtf/text/TextCodec.h

 /*
  * Copyright (C) 2004, 2006 Apple Computer, Inc.  All rights reserved.
  * Copyright (C) 2006 Alexey Proskuryakov <ap@nypop.com>
  *
  * 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 21 matching lines @@
 #include "wtf/Noncopyable.h"
 #include "wtf/PassOwnPtr.h"
 #include "wtf/Vector.h"
 #include "wtf/text/WTFString.h"
 #include "wtf/unicode/Unicode.h"
 
 namespace WTF {
 
 class TextEncoding;
 
+// Which normalization algorithm to apply.
+enum NormalizationMode {
+    // No normalization is performed.
+    NoNormalization,
+
+    // Apply Unicode NFC normalization.
+    NFCNormalization
+};
+
 // Specifies what will happen when a character is encountered that is
 // not encodable in the character set.
 enum UnencodableHandling {
     // Substitutes the replacement character "?".
     QuestionMarksForUnencodables,
 
     // Encodes the character as an XML entity. For example, U+06DE
     // would be "&#1758;" (0x6DE = 1758 in octal).
     EntitiesForUnencodables,
 
@@ skipping 30 matching lines @@
 typedef void (*EncodingNameRegistrar)(const char* alias, const char* name);
 
 typedef PassOwnPtr<TextCodec> (*NewTextCodecFunction)(const TextEncoding&, const void* additionalData);
 typedef void (*TextCodecRegistrar)(const char* name, NewTextCodecFunction, const void* additionalData);
 
 } // namespace WTF
 
 using WTF::TextCodec;
 
 #endif // TextCodec_h