Add "Unicode" suffixes to some functions of WTF::String and WTF::StringImpl.

third_party/WebKit/Source/platform/wtf/text/StringImpl.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2013 Apple Inc. All rights
  * reserved.
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
@@ skipping 360 matching lines @@
   int64_t ToInt64(bool* ok = 0);    // ignores trailing garbage
   uint64_t ToUInt64(bool* ok = 0);  // ignores trailing garbage
 
   // FIXME: Like the strict functions above, these give false for "ok" when
   // there is trailing garbage.  Like the non-strict functions above, these
   // return the value when there is trailing garbage.  It would be better if
   // these were more consistent with the above functions instead.
   double ToDouble(bool* ok = 0);
   float ToFloat(bool* ok = 0);
 
-  PassRefPtr<StringImpl> Lower();
+  PassRefPtr<StringImpl> LowerUnicode();
   PassRefPtr<StringImpl> LowerASCII();
-  PassRefPtr<StringImpl> Upper();
+  PassRefPtr<StringImpl> UpperUnicode();
   PassRefPtr<StringImpl> UpperASCII();
-  PassRefPtr<StringImpl> Lower(const AtomicString& locale_identifier);
-  PassRefPtr<StringImpl> Upper(const AtomicString& locale_identifier);
+  PassRefPtr<StringImpl> LowerUnicode(const AtomicString& locale_identifier);
+  PassRefPtr<StringImpl> UpperUnicode(const AtomicString& locale_identifier);
 
   PassRefPtr<StringImpl> Fill(UChar);
   // FIXME: Do we need fill(char) or can we just do the right thing if UChar is
   // ASCII?
   PassRefPtr<StringImpl> FoldCase();
 
   PassRefPtr<StringImpl> Truncate(unsigned length);
 
   PassRefPtr<StringImpl> StripWhiteSpace();
   PassRefPtr<StringImpl> StripWhiteSpace(IsWhiteSpaceFunctionPtr);
@@ skipping 491 matching lines @@
 using WTF::kTextCaseASCIIInsensitive;
 using WTF::kTextCaseUnicodeInsensitive;
 using WTF::kTextCaseSensitive;
 using WTF::TextCaseSensitivity;
 using WTF::Equal;
 using WTF::EqualNonNull;
 using WTF::LengthOfNullTerminatedString;
 using WTF::ReverseFind;
 
 #endif