Reduce unnecessary usage of TextCaseSensitivity::TextCaseInsensitive.

third_party/WebKit/Source/core/xml/parser/XMLDocumentParser.cpp

 /*
  * Copyright (C) 2000 Peter Kelly (pmk@post.com)
  * Copyright (C) 2005, 2006, 2008, 2014 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2007 Samuel Weinig (sam@webkit.org)
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2008 Holger Hans Peter Freyther
  * Copyright (C) 2008 Torch Mobile Inc. All rights reserved.
  * (http://www.torchmobile.com/)
  *
@@ skipping 560 matching lines @@
 #define xmlParseChunk \
   #error "Use parseChunk instead to select the correct encoding."
 
 static bool isLibxmlDefaultCatalogFile(const String& urlString) {
   // On non-Windows platforms libxml asks for this URL, the
   // "XML_XML_DEFAULT_CATALOG", on initialization.
   if (urlString == "file:///etc/xml/catalog")
     return true;
 
   // On Windows, libxml computes a URL relative to where its DLL resides.
-  if (urlString.startsWith("file:///", TextCaseInsensitive) &&
-      urlString.endsWith("/etc/catalog", TextCaseInsensitive))
+  if (urlString.startsWith("file:///", TextCaseASCIIInsensitive) &&
+      urlString.endsWith("/etc/catalog", TextCaseASCIIInsensitive))
     return true;
   return false;
 }
 
 static bool shouldAllowExternalLoad(const KURL& url) {
   String urlString = url.getString();
 
   // This isn't really necessary now that initializeLibXMLIfNecessary
   // disables catalog support in libxml, but keeping it for defense in depth.
   if (isLibxmlDefaultCatalogFile(url))
     return false;
 
   // The most common DTD. There isn't much point in hammering www.w3c.org by
   // requesting this URL for every XHTML document.
-  if (urlString.startsWith("http://www.w3.org/TR/xhtml", TextCaseInsensitive))
+  if (urlString.startsWith("http://www.w3.org/TR/xhtml",
+                           TextCaseASCIIInsensitive))
     return false;
 
   // Similarly, there isn't much point in requesting the SVG DTD.
   if (urlString.startsWith("http://www.w3.org/Graphics/SVG",
-                           TextCaseInsensitive))
+                           TextCaseASCIIInsensitive))
     return false;
 
   // The libxml doesn't give us a lot of context for deciding whether to allow
   // this request. In the worst case, this load could be for an external
   // entity and the resulting document could simply read the retrieved
   // content. If we had more context, we could potentially allow the parser to
   // load a DTD. As things stand, we take the conservative route and allow
   // same-origin requests only.
   if (!XMLDocumentParserScope::currentDocument->getSecurityOrigin()->canRequest(
           url)) {
@@ skipping 1093 matching lines @@
   RefPtr<XMLParserContext> parser =
       XMLParserContext::createStringParser(&sax, &state);
   String parseString = "<?xml version=\"1.0\"?><attrs " + string + " />";
   parseChunk(parser->context(), parseString);
   finishParsing(parser->context());
   attrsOK = state.gotAttributes;
   return state.attributes;
 }
 
 }  // namespace blink