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

third_party/WebKit/Source/core/css/resolver/ElementStyleResources.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc.
  * All rights reserved.
  * Copyright (C) 2013 Google Inc. 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 49 matching lines @@
   if (value.isImageSetValue())
     return setOrPendingFromValue(property, toCSSImageSetValue(value));
 
   return nullptr;
 }
 
 StyleImage* ElementStyleResources::generatedOrPendingFromValue(
     CSSPropertyID property,
     const CSSImageGeneratorValue& value) {
   if (value.isPending()) {
-    m_pendingImageProperties.add(property);
+    m_pendingImageProperties.insert(property);
     return StylePendingImage::create(value);
   }
   return StyleGeneratedImage::create(value);
 }
 
 StyleImage* ElementStyleResources::setOrPendingFromValue(
     CSSPropertyID property,
     const CSSImageSetValue& value) {
   if (value.isCachePending(m_deviceScaleFactor)) {
-    m_pendingImageProperties.add(property);
+    m_pendingImageProperties.insert(property);
     return StylePendingImage::create(value);
   }
   return value.cachedImage(m_deviceScaleFactor);
 }
 
 StyleImage* ElementStyleResources::cachedOrPendingFromValue(
     CSSPropertyID property,
     const CSSImageValue& value) {
   if (value.isCachePending()) {
-    m_pendingImageProperties.add(property);
+    m_pendingImageProperties.insert(property);
     return StylePendingImage::create(value);
   }
   value.restoreCachedResourceIfNeeded(*m_document);
   return value.cachedImage();
 }
 
 SVGElementProxy& ElementStyleResources::cachedOrPendingFromValue(
     const CSSURIValue& value) {
   return value.ensureElementProxy(*m_document);
 }
@@ skipping 154 matching lines @@
     }
   }
 }
 
 void ElementStyleResources::loadPendingResources(ComputedStyle* computedStyle) {
   loadPendingImages(computedStyle);
   loadPendingSVGDocuments(computedStyle);
 }
 
 }  // namespace blink