Rename blink::AtomicString::Lower() to DeprecatedLower().

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

 /*
  * Copyright (C) 2004, 2005, 2006, 2008 Apple 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.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 147 matching lines @@
 
   bool EndsWith(
       const StringView& suffix,
       TextCaseSensitivity case_sensitivity = kTextCaseSensitive) const {
     return string_.EndsWith(suffix, case_sensitivity);
   }
   bool EndsWith(UChar character) const { return string_.EndsWith(character); }
 
   // Returns a lowercase version of the string. This function might
   // convert non-ASCII characters to ASCII characters. For example,
-  // lower() for U+212A is 'k'.
+  // DeprecatedLower() for U+212A is 'k'.
   // This function is rarely used to implement web platform features.
-  AtomicString Lower() const;
+  // See crbug.com/627682.
+  // This function is deprecated. We should use LowerASCII(), or introduce
+  // LowerUnicode().
+  AtomicString DeprecatedLower() const;
 
   // Returns a lowercase/uppercase version of the string.
   // These functions convert ASCII characters only.
   AtomicString LowerASCII() const;
   AtomicString UpperASCII() const;
 
   int ToInt(bool* ok = 0) const { return string_.ToInt(ok); }
   double ToDouble(bool* ok = 0) const { return string_.ToDouble(ok); }
   float ToFloat(bool* ok = 0) const { return string_.ToFloat(ok); }
 
@@ skipping 124 matching lines @@
 using WTF::AtomicString;
 using WTF::g_null_atom;
 using WTF::g_empty_atom;
 using WTF::g_star_atom;
 using WTF::g_xml_atom;
 using WTF::g_xmlns_atom;
 using WTF::g_xlink_atom;
 
 #include "wtf/text/StringConcatenate.h"
 #endif  // AtomicString_h