Consistently use on-heap collections for StyleRuleBase descendants.

Source/core/dom/StyleEngine.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2008, 2009, 2011, 2012 Google Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) Research In Motion Limited 2010-2011. All rights reserved.
@@ skipping 521 matching lines @@
 void StyleEngine::updateGenericFontFamilySettings()
 {
     if (!m_fontSelector)
         return;
 
     m_fontSelector->updateGenericFontFamilySettings(m_document);
     if (m_resolver)
         m_resolver->invalidateMatchedPropertiesCache();
 }
 
-void StyleEngine::removeFontFaceRules(const Vector<const StyleRuleFontFace*>& fontFaceRules)
+void StyleEngine::removeFontFaceRules(const WillBeHeapVector<RawPtrWillBeMember<const StyleRuleFontFace> >& fontFaceRules)
 {
     if (!m_fontSelector)
         return;
 
     FontFaceCache* cache = m_fontSelector->fontFaceCache();
     for (unsigned i = 0; i < fontFaceRules.size(); ++i)
         cache->remove(fontFaceRules[i]);
     if (m_resolver)
         m_resolver->invalidateMatchedPropertiesCache();
 }
@@ skipping 57 matching lines @@
 {
     HashMap<StyleSheetContents*, AtomicString>::iterator it = sheetToTextCache().find(contents);
     if (it == sheetToTextCache().end())
         return;
 
     textToSheetCache().remove(it->value);
     sheetToTextCache().remove(contents);
 }
 
 }