Use the correct case converter for |localName| and |tagName|

third_party/WebKit/Source/core/html/HTMLElement.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2004-2008, 2013, 2014 Apple Inc. All rights reserved.
  * Copyright (C) 2009 Torch Mobile Inc. All rights reserved.
  * (http://www.torchmobile.com/)
  * Copyright (C) 2011 Motorola Mobility. 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
@@ skipping 96 matching lines @@
     return true;
   return !node.isElementNode() && node.parentNode()->isHTMLElement();
 }
 
 }  // anonymous namespace
 
 DEFINE_ELEMENT_FACTORY_WITH_TAGNAME(HTMLElement);
 
 String HTMLElement::debugNodeName() const {
   if (document().isHTMLDocument()) {
-    return tagQName().hasPrefix() ? Element::nodeName().upper()
-                                  : tagQName().localName().upper();
+    return tagQName().hasPrefix() ? Element::nodeName().upperASCII()
+                                  : tagQName().localName().upperASCII();
   }
   return Element::nodeName();
 }
 
 String HTMLElement::nodeName() const {
   // localNameUpper may intern and cache an AtomicString.
   DCHECK(isMainThread());
 
   // FIXME: Would be nice to have an atomicstring lookup based off uppercase
   // chars that does not have to copy the string on a hit in the hash.
   // FIXME: We should have a way to detect XHTML elements and replace the
   // hasPrefix() check with it.
   if (document().isHTMLDocument()) {
     if (!tagQName().hasPrefix())
       return tagQName().localNameUpper();
-    return Element::nodeName().upper();
+    return Element::nodeName().upperASCII();
   }
   return Element::nodeName();
 }
 
 bool HTMLElement::shouldSerializeEndTag() const {
   // See https://www.w3.org/TR/DOM-Parsing/
   if (hasTagName(areaTag) || hasTagName(baseTag) || hasTagName(basefontTag) ||
       hasTagName(bgsoundTag) || hasTagName(brTag) || hasTagName(colTag) ||
       hasTagName(embedTag) || hasTagName(frameTag) || hasTagName(hrTag) ||
       hasTagName(imgTag) || hasTagName(inputTag) || hasTagName(keygenTag) ||
@@ skipping 1034 matching lines @@
 
 #ifndef NDEBUG
 
 // For use in the debugger
 void dumpInnerHTML(blink::HTMLElement*);
 
 void dumpInnerHTML(blink::HTMLElement* element) {
   printf("%s\n", element->innerHTML().ascii().data());
 }
 #endif