Use initializer_lists for static WTF::HashSets.

third_party/WebKit/Source/core/svg/SVGUseElement.cpp

 /*
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007 Rob Buis <buis@kde.org>
  * Copyright (C) Research In Motion Limited 2009-2010. All rights reserved.
  * Copyright (C) 2011 Torch Mobile (Beijing) Co. Ltd. All rights reserved.
  * Copyright (C) 2012 University of Szeged
  * Copyright (C) 2012 Renata Hodovan <reni@webkit.org>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ skipping 231 matching lines @@
 
 static bool isDisallowedElement(const Element& element)
 {
     // Spec: "Any 'svg', 'symbol', 'g', graphics element or other 'use' is potentially a template object that can be re-used
     // (i.e., "instanced") in the SVG document via a 'use' element."
     // "Graphics Element" is defined as 'circle', 'ellipse', 'image', 'line', 'path', 'polygon', 'polyline', 'rect', 'text'
     // Excluded are anything that is used by reference or that only make sense to appear once in a document.
     if (!element.isSVGElement())
         return true;
 
-    DEFINE_STATIC_LOCAL(HashSet<QualifiedName>, allowedElementTags, ());
-    if (allowedElementTags.isEmpty()) {
-        allowedElementTags.add(SVGNames::aTag);
-        allowedElementTags.add(SVGNames::circleTag);
-        allowedElementTags.add(SVGNames::descTag);
-        allowedElementTags.add(SVGNames::ellipseTag);
-        allowedElementTags.add(SVGNames::gTag);
-        allowedElementTags.add(SVGNames::imageTag);
-        allowedElementTags.add(SVGNames::lineTag);
-        allowedElementTags.add(SVGNames::metadataTag);
-        allowedElementTags.add(SVGNames::pathTag);
-        allowedElementTags.add(SVGNames::polygonTag);
-        allowedElementTags.add(SVGNames::polylineTag);
-        allowedElementTags.add(SVGNames::rectTag);
-        allowedElementTags.add(SVGNames::svgTag);
-        allowedElementTags.add(SVGNames::switchTag);
-        allowedElementTags.add(SVGNames::symbolTag);
-        allowedElementTags.add(SVGNames::textTag);
-        allowedElementTags.add(SVGNames::textPathTag);
-        allowedElementTags.add(SVGNames::titleTag);
-        allowedElementTags.add(SVGNames::tspanTag);
-        allowedElementTags.add(SVGNames::useTag);
-    }
+    DEFINE_STATIC_LOCAL(HashSet<QualifiedName>, allowedElementTags, ({
+        SVGNames::aTag,
+        SVGNames::circleTag,
+        SVGNames::descTag,
+        SVGNames::ellipseTag,
+        SVGNames::gTag,
+        SVGNames::imageTag,
+        SVGNames::lineTag,
+        SVGNames::metadataTag,
+        SVGNames::pathTag,
+        SVGNames::polygonTag,
+        SVGNames::polylineTag,
+        SVGNames::rectTag,
+        SVGNames::svgTag,
+        SVGNames::switchTag,
+        SVGNames::symbolTag,
+        SVGNames::textTag,
+        SVGNames::textPathTag,
+        SVGNames::titleTag,
+        SVGNames::tspanTag,
+        SVGNames::useTag,
+    }));
     return !allowedElementTags.contains<SVGAttributeHashTranslator>(element.tagQName());
 }
 
 void SVGUseElement::scheduleShadowTreeRecreation()
 {
     if (inUseShadowTree())
         return;
     m_needsShadowTreeRecreation = true;
     document().scheduleUseShadowTreeUpdate(*this);
 }
@@ skipping 464 matching lines @@
 
     if (m_resource)
         m_resource->removeClient(this);
 
     m_resource = resource;
     if (m_resource)
         m_resource->addClient(this);
 }
 
 } // namespace blink