Use initializer_lists for static WTF::HashSets.

third_party/WebKit/Source/core/xml/XPathParser.cpp

 /*
  * Copyright 2005 Maksim Orlovich <maksim@kde.org>
  * Copyright (C) 2006 Apple Computer, Inc.
  * Copyright (C) 2007 Alexey Proskuryakov <ap@webkit.org>
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1. Redistributions of source code must retain the above copyright
@@ skipping 88 matching lines @@
 
     AxisNamesMap::iterator it = axisNames.find(name);
     if (it == axisNames.end())
         return false;
     type = it->value;
     return true;
 }
 
 static bool isNodeTypeName(const String& name)
 {
-    DEFINE_STATIC_LOCAL(HashSet<String>, nodeTypeNames, ());
-    if (nodeTypeNames.isEmpty()) {
-        nodeTypeNames.add("comment");
-        nodeTypeNames.add("text");
-        nodeTypeNames.add("processing-instruction");
-        nodeTypeNames.add("node");
-    }
+    DEFINE_STATIC_LOCAL(HashSet<String>, nodeTypeNames, ({
+        "comment",
+        "text",
+        "processing-instruction",
+        "node",
+    }));
     return nodeTypeNames.contains(name);
 }
 
 // Returns whether the current token can possibly be a binary operator, given
 // the previous token. Necessary to disambiguate some of the operators
 // (* (multiply), div, and, or, mod) in the [32] Operator rule
 // (check http://www.w3.org/TR/xpath#exprlex).
 bool Parser::isBinaryOperatorContext() const
 {
     switch (m_lastTokenType) {
@@ skipping 380 matching lines @@
 
 void Parser::deleteString(String* s)
 {
     if (s == 0)
         return;
 
     ASSERT(m_strings.contains(s));
 
     m_strings.remove(s);
 }