Consistently use on-heap collections for StyleRuleBase descendants.

Source/core/css/StyleSheetContents.cpp

 /*
  * (C) 1999-2003 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2004, 2006, 2007, 2012 Apple 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.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 53 matching lines @@
     , m_usesRemUnits(false)
     , m_isMutable(false)
     , m_isInMemoryCache(false)
     , m_hasFontFaceRule(false)
     , m_hasMediaQueries(false)
     , m_parserContext(context)
 {
 }
 
 StyleSheetContents::StyleSheetContents(const StyleSheetContents& o)
-    : m_ownerRule(0)
+    : m_ownerRule(nullptr)
     , m_originalURL(o.m_originalURL)
     , m_encodingFromCharsetRule(o.m_encodingFromCharsetRule)
     , m_importRules(o.m_importRules.size())
     , m_childRules(o.m_childRules.size())
     , m_namespaces(o.m_namespaces)
     , m_hasSyntacticallyValidCSSHeader(o.m_hasSyntacticallyValidCSSHeader)
     , m_didLoadErrorOccur(false)
     , m_usesRemUnits(o.m_usesRemUnits)
     , m_isMutable(false)
     , m_isInMemoryCache(false)
@@ skipping 490 matching lines @@
     }
     m_ruleSet.clear();
 }
 
 void StyleSheetContents::notifyRemoveFontFaceRule(const StyleRuleFontFace* fontFaceRule)
 {
     StyleSheetContents* root = rootStyleSheet();
 
     for (unsigned i = 0; i < root->m_clients.size(); ++i) {
         if (Node* ownerNode = root->m_clients[0]->ownerNode())
-            ownerNode->document().styleEngine()->removeFontFaceRules(Vector<const StyleRuleFontFace*>(1, fontFaceRule));
+            ownerNode->document().styleEngine()->removeFontFaceRules(WillBeHeapVector<RawPtrWillBeMember<const StyleRuleFontFace> >(1, fontFaceRule));
     }
 }
 
-static void findFontFaceRulesFromRules(const WillBeHeapVector<RefPtrWillBeMember<StyleRuleBase> >& rules, Vector<const StyleRuleFontFace*>& fontFaceRules)
+static void findFontFaceRulesFromRules(const WillBeHeapVector<RefPtrWillBeMember<StyleRuleBase> >& rules, WillBeHeapVector<RawPtrWillBeMember<const StyleRuleFontFace> >& fontFaceRules)
 {
     for (unsigned i = 0; i < rules.size(); ++i) {
         StyleRuleBase* rule = rules[i].get();
 
         if (rule->isFontFaceRule()) {
             fontFaceRules.append(toStyleRuleFontFace(rule));
         } else if (rule->isMediaRule()) {
             StyleRuleMedia* mediaRule = toStyleRuleMedia(rule);
             // We cannot know whether the media rule matches or not, but
             // for safety, remove @font-face in the media rule (if exists).
             findFontFaceRulesFromRules(mediaRule->childRules(), fontFaceRules);
         }
     }
 }
 
-void StyleSheetContents::findFontFaceRules(Vector<const StyleRuleFontFace*>& fontFaceRules)
+void StyleSheetContents::findFontFaceRules(WillBeHeapVector<RawPtrWillBeMember<const StyleRuleFontFace> >& fontFaceRules)
 {
     for (unsigned i = 0; i < m_importRules.size(); ++i) {
         if (!m_importRules[i]->styleSheet())
             continue;
         m_importRules[i]->styleSheet()->findFontFaceRules(fontFaceRules);
     }
 
     findFontFaceRulesFromRules(childRules(), fontFaceRules);
 }
 
 void StyleSheetContents::trace(Visitor* visitor)
 {
+    visitor->trace(m_ownerRule);
     visitor->trace(m_importRules);
     visitor->trace(m_childRules);
 }
 
 }