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

third_party/WebKit/Source/core/css/invalidation/InvalidationSet.cpp

 /*
  * Copyright (C) 2014 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 187 matching lines @@
 HashSet<AtomicString>& InvalidationSet::ensureAttributeSet() {
   if (!m_attributes)
     m_attributes = WTF::wrapUnique(new HashSet<AtomicString>);
   return *m_attributes;
 }
 
 void InvalidationSet::addClass(const AtomicString& className) {
   if (wholeSubtreeInvalid())
     return;
   DCHECK(!className.isEmpty());
-  ensureClassSet().add(className);
+  ensureClassSet().insert(className);
 }
 
 void InvalidationSet::addId(const AtomicString& id) {
   if (wholeSubtreeInvalid())
     return;
   DCHECK(!id.isEmpty());
-  ensureIdSet().add(id);
+  ensureIdSet().insert(id);
 }
 
 void InvalidationSet::addTagName(const AtomicString& tagName) {
   if (wholeSubtreeInvalid())
     return;
   DCHECK(!tagName.isEmpty());
-  ensureTagNameSet().add(tagName);
+  ensureTagNameSet().insert(tagName);
 }
 
 void InvalidationSet::addAttribute(const AtomicString& attribute) {
   if (wholeSubtreeInvalid())
     return;
   DCHECK(!attribute.isEmpty());
-  ensureAttributeSet().add(attribute);
+  ensureAttributeSet().insert(attribute);
 }
 
 void InvalidationSet::setWholeSubtreeInvalid() {
   if (m_allDescendantsMightBeInvalid)
     return;
 
   m_allDescendantsMightBeInvalid = true;
   m_customPseudoInvalid = false;
   m_treeBoundaryCrossing = false;
   m_insertionPointCrossing = false;
@@ skipping 73 matching lines @@
   return *m_siblingDescendantInvalidationSet;
 }
 
 DescendantInvalidationSet& SiblingInvalidationSet::ensureDescendants() {
   if (!m_descendantInvalidationSet)
     m_descendantInvalidationSet = DescendantInvalidationSet::create();
   return *m_descendantInvalidationSet;
 }
 
 }  // namespace blink