Use ASCII-caseless matching for attribute names.

third_party/WebKit/Source/core/dom/QualifiedName.h

 /*
  * Copyright (C) 2005, 2006, 2009 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 117 matching lines @@
   }
   bool operator!=(const QualifiedName& other) const {
     return !(*this == other);
   }
 
   bool Matches(const QualifiedName& other) const {
     return impl_ == other.impl_ || (LocalName() == other.LocalName() &&
                                     NamespaceURI() == other.NamespaceURI());
   }
 
-  bool MatchesPossiblyIgnoringCase(const QualifiedName& other,
-                                   bool should_ignore_case) const {
+  bool MatchesPossiblyIgnoringASCIICase(const QualifiedName& other,
+                                        bool should_ignore_case) const {
     return impl_ == other.impl_ ||
-           (EqualPossiblyIgnoringCase(LocalName(), other.LocalName(),
-                                      should_ignore_case) &&
+           (EqualPossiblyIgnoringASCIICase(LocalName(), other.LocalName(),
+                                           should_ignore_case) &&
             NamespaceURI() == other.NamespaceURI());
   }
 
   bool HasPrefix() const { return impl_->prefix_ != g_null_atom; }
   void SetPrefix(const AtomicString& prefix) {
     *this = QualifiedName(prefix, LocalName(), NamespaceURI());
   }
 
   const AtomicString& Prefix() const { return impl_->prefix_; }
   const AtomicString& LocalName() const { return impl_->local_name_; }
@@ skipping 87 matching lines @@
 struct HashTraits<blink::QualifiedName>
     : SimpleClassHashTraits<blink::QualifiedName> {
   static const bool kEmptyValueIsZero = false;
   static const blink::QualifiedName& EmptyValue() {
     return blink::QualifiedName::Null();
   }
 };
 }  // namespace WTF
 
 #endif