Remove unused text encoding quirks.

Source/wtf/text/TextEncodingRegistry.cpp

 /*
  * Copyright (C) 2006, 2007, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2007-2009 Torch Mobile, Inc.
  *
  * 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 98 matching lines @@
     // We don't have to use AtomicallyInitializedStatic here because
     // this function is called on the main thread for any page before
     // it is used in worker threads.
     DEFINE_STATIC_LOCAL(Mutex, mutex, ());
     return mutex;
 }
 
 static TextEncodingNameMap* textEncodingNameMap;
 static TextCodecMap* textCodecMap;
 static bool didExtendTextCodecMaps;
-static HashSet<const char*>* japaneseEncodings;
-static HashSet<const char*>* nonBackslashEncodings;
 
 static const char textEncodingNameBlacklist[][6] = { "UTF-7" };
 
 #if ERROR_DISABLED
 
 static inline void checkExistingName(const char*, const char*) { }
 
 #else
 
 static void checkExistingName(const char* alias, const char* atomicName)
@@ skipping 83 matching lines @@
     TextCodecUTF8::registerEncodingNames(addToTextEncodingNameMap);
     TextCodecUTF8::registerCodecs(addToTextCodecMap);
 
     TextCodecUTF16::registerEncodingNames(addToTextEncodingNameMap);
     TextCodecUTF16::registerCodecs(addToTextCodecMap);
 
     TextCodecUserDefined::registerEncodingNames(addToTextEncodingNameMap);
     TextCodecUserDefined::registerCodecs(addToTextCodecMap);
 }
 
-static void addEncodingName(HashSet<const char*>* set, const char* name)
-{
-    // We must not use atomicCanonicalTextEncodingName() because this function is called in it.
-    const char* atomicName = textEncodingNameMap->get(name);
-    if (atomicName)
-        set->add(atomicName);
-}
-
-static void buildQuirksSets()
-{
-    // FIXME: Having isJapaneseEncoding() and shouldShowBackslashAsCurrencySymbolIn()
-    // and initializing the sets for them in TextEncodingRegistry.cpp look strange.
-
-    ASSERT(!japaneseEncodings);
-    ASSERT(!nonBackslashEncodings);
-
-    japaneseEncodings = new HashSet<const char*>;
-    addEncodingName(japaneseEncodings, "EUC-JP");
-    addEncodingName(japaneseEncodings, "ISO-2022-JP");
-    addEncodingName(japaneseEncodings, "ISO-2022-JP-1");
-    addEncodingName(japaneseEncodings, "ISO-2022-JP-2");
-    addEncodingName(japaneseEncodings, "ISO-2022-JP-3");
-    addEncodingName(japaneseEncodings, "JIS_C6226-1978");
-    addEncodingName(japaneseEncodings, "JIS_X0201");
-    addEncodingName(japaneseEncodings, "JIS_X0208-1983");
-    addEncodingName(japaneseEncodings, "JIS_X0208-1990");
-    addEncodingName(japaneseEncodings, "JIS_X0212-1990");
-    addEncodingName(japaneseEncodings, "Shift_JIS");
-    addEncodingName(japaneseEncodings, "Shift_JIS_X0213-2000");
-    addEncodingName(japaneseEncodings, "cp932");
-    addEncodingName(japaneseEncodings, "x-mac-japanese");
-
-    nonBackslashEncodings = new HashSet<const char*>;
-    // The text encodings below treat backslash as a currency symbol for IE compatibility.
-    // See http://blogs.msdn.com/michkap/archive/2005/09/17/469941.aspx for more information.
-    addEncodingName(nonBackslashEncodings, "x-mac-japanese");
-    addEncodingName(nonBackslashEncodings, "ISO-2022-JP");
-    addEncodingName(nonBackslashEncodings, "EUC-JP");
-    // Shift_JIS_X0213-2000 is not the same encoding as Shift_JIS on Mac. We need to register both of them.
-    addEncodingName(nonBackslashEncodings, "Shift_JIS");
-    addEncodingName(nonBackslashEncodings, "Shift_JIS_X0213-2000");
-}
-
-bool isJapaneseEncoding(const char* canonicalEncodingName)
-{
-    return canonicalEncodingName && japaneseEncodings && japaneseEncodings->contains(canonicalEncodingName);
-}
-
 bool isReplacementEncoding(const char* alias)
 {
     return alias && !strcasecmp(alias, "replacement");
 }
 
 bool isReplacementEncoding(const String& alias)
 {
     return alias == "replacement";
 }
 
-bool shouldShowBackslashAsCurrencySymbolIn(const char* canonicalEncodingName)
-{
-    return canonicalEncodingName && nonBackslashEncodings && nonBackslashEncodings->contains(canonicalEncodingName);
-}
-
 static void extendTextCodecMaps()
 {
     TextCodecReplacement::registerEncodingNames(addToTextEncodingNameMap);
     TextCodecReplacement::registerCodecs(addToTextCodecMap);
 
     TextCodecICU::registerEncodingNames(addToTextEncodingNameMap);
     TextCodecICU::registerCodecs(addToTextCodecMap);
 
     pruneBlacklistedCodecs();
-    buildQuirksSets();
 }
 
 PassOwnPtr<TextCodec> newTextCodec(const TextEncoding& encoding)
 {
     MutexLocker lock(encodingRegistryMutex());
 
     ASSERT(textCodecMap);
     TextCodecFactory factory = textCodecMap->get(encoding.name());
     ASSERT(factory.function);
     return factory.function(encoding, factory.additionalData);
@@ skipping 58 matching lines @@
     MutexLocker lock(encodingRegistryMutex());
 
     TextEncodingNameMap::const_iterator it = textEncodingNameMap->begin();
     TextEncodingNameMap::const_iterator end = textEncodingNameMap->end();
     for (; it != end; ++it)
         fprintf(stderr, "'%s' => '%s'\n", it->key, it->value);
 }
 #endif
 
 } // namespace WTF