Migrate WTF::HashSet::add() to ::insert() [part 1 of N]

third_party/WebKit/Source/core/svg/SVGPatternElement.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 2010. 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.
@@ skipping 180 matching lines @@
     attributes.setPatternContentElement(element);
 }
 
 void SVGPatternElement::collectPatternAttributes(
     PatternAttributes& attributes) const {
   HeapHashSet<Member<const SVGPatternElement>> processedPatterns;
   const SVGPatternElement* current = this;
 
   while (true) {
     setPatternAttributes(current, attributes);
-    processedPatterns.add(current);
+    processedPatterns.insert(current);
 
     // Respect xlink:href, take attributes from referenced element
     Node* refNode = SVGURIReference::targetElementFromIRIString(
         current->hrefString(), treeScope());
 
     // Only consider attached SVG pattern elements.
     if (!isSVGPatternElement(refNode) || !refNode->layoutObject())
       break;
 
     current = toSVGPatternElement(refNode);
@@ skipping 10 matching lines @@
 }
 
 bool SVGPatternElement::selfHasRelativeLengths() const {
   return m_x->currentValue()->isRelative() ||
          m_y->currentValue()->isRelative() ||
          m_width->currentValue()->isRelative() ||
          m_height->currentValue()->isRelative();
 }
 
 }  // namespace blink