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

third_party/WebKit/Source/core/animation/StringKeyframe.cpp

 // Copyright 2014 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/animation/StringKeyframe.h"
 
 #include "core/StylePropertyShorthand.h"
 #include "core/animation/css/CSSAnimations.h"
 #include "core/css/CSSCustomPropertyDeclaration.h"
 #include "core/css/CSSPropertyMetadata.h"
@@ skipping 61 matching lines @@
   // This is not used in time-critical code, so we probably don't need to
   // worry about caching this result.
   PropertyHandleSet properties;
   for (unsigned i = 0; i < m_cssPropertyMap->propertyCount(); ++i) {
     StylePropertySet::PropertyReference propertyReference =
         m_cssPropertyMap->propertyAt(i);
     DCHECK(!isShorthandProperty(propertyReference.id()))
         << "Web Animations: Encountered unexpanded shorthand CSS property ("
         << propertyReference.id() << ").";
     if (propertyReference.id() == CSSPropertyVariable)
-      properties.add(PropertyHandle(
+      properties.insert(PropertyHandle(
           toCSSCustomPropertyDeclaration(propertyReference.value()).name()));
     else
-      properties.add(PropertyHandle(propertyReference.id(), false));
+      properties.insert(PropertyHandle(propertyReference.id(), false));
   }
 
   for (unsigned i = 0; i < m_presentationAttributeMap->propertyCount(); ++i)
-    properties.add(
+    properties.insert(
         PropertyHandle(m_presentationAttributeMap->propertyAt(i).id(), true));
 
   for (const auto& key : m_svgAttributeMap.keys())
-    properties.add(PropertyHandle(*key));
+    properties.insert(PropertyHandle(*key));
 
   return properties;
 }
 
 PassRefPtr<Keyframe> StringKeyframe::clone() const {
   return adoptRef(new StringKeyframe(*this));
 }
 
 PassRefPtr<Keyframe::PropertySpecificKeyframe>
 StringKeyframe::createPropertySpecificKeyframe(
@@ skipping 46 matching lines @@
 }
 
 PassRefPtr<Keyframe::PropertySpecificKeyframe>
 SVGPropertySpecificKeyframe::neutralKeyframe(
     double offset,
     PassRefPtr<TimingFunction> easing) const {
   return create(offset, std::move(easing), String(), EffectModel::CompositeAdd);
 }
 
 }  // namespace blink