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

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

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/svg/SVGElementProxy.h"
 
 #include "core/dom/IdTargetObserver.h"
 #include "core/svg/SVGElement.h"
 #include "core/svg/SVGResourceClient.h"
 #include "platform/loader/fetch/FetchInitiatorTypeNames.h"
@@ skipping 162 matching lines @@
     observer->contentChanged();
 }
 
 DEFINE_TRACE(SVGElementProxy) {
   visitor->trace(m_clients);
   visitor->trace(m_observers);
   visitor->trace(m_document);
 }
 
 void SVGElementProxySet::add(SVGElementProxy& elementProxy) {
-  m_elementProxies.add(&elementProxy);
+  m_elementProxies.insert(&elementProxy);
 }
 
 bool SVGElementProxySet::isEmpty() const {
   return m_elementProxies.isEmpty();
 }
 
 void SVGElementProxySet::notifyContentChanged(TreeScope& treeScope) {
   for (SVGElementProxy* proxy : m_elementProxies)
     proxy->contentChanged(treeScope);
 }
 
 DEFINE_TRACE(SVGElementProxySet) {
   visitor->trace(m_elementProxies);
 }
 
 }  // namespace blink