[oilpan] Move CSSFontFace and CSSSegmentedFontFace to the managed heap

Source/core/css/CSSFontSelector.cpp

 /*
  * Copyright (C) 2007, 2008, 2011 Apple Inc. All rights reserved.
  *           (C) 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 489 matching lines @@
     // We have a face. Ask it for a font data. If it cannot produce one, it will fail, and the OS will take over.
     return face->getFontData(fontDescription);
 }
 
 CSSSegmentedFontFace* CSSFontSelector::getFontFace(const FontDescription& fontDescription, const AtomicString& family)
 {
     Vector<RefPtr<CSSFontFace> >* familyFontFaces = m_fontFaces.get(family);
     if (!familyFontFaces || familyFontFaces->isEmpty())
         return 0;
 
-    OwnPtr<HashMap<unsigned, RefPtr<CSSSegmentedFontFace> > >& segmentedFontFaceCache = m_fonts.add(family, nullptr).iterator->value;
+    OwnPtr<HashMap<unsigned, Persistent<CSSSegmentedFontFace> > >& segmentedFontFaceCache = m_fonts.add(family, nullptr).iterator->value;
     if (!segmentedFontFaceCache)
-        segmentedFontFaceCache = adoptPtr(new HashMap<unsigned, RefPtr<CSSSegmentedFontFace> >);
+        segmentedFontFaceCache = adoptPtr(new HashMap<unsigned, Persistent<CSSSegmentedFontFace> >);
 
     FontTraitsMask traitsMask = fontDescription.traitsMask();
 
-    RefPtr<CSSSegmentedFontFace>& face = segmentedFontFaceCache->add(traitsMask, 0).iterator->value;
+    Persistent<CSSSegmentedFontFace>& face = segmentedFontFaceCache->add(traitsMask, nullptr).iterator->value;
     if (!face) {
         face = CSSSegmentedFontFace::create(this);
 
         // Collect all matching faces and sort them in order of preference.
         Vector<CSSFontFace*, 32> candidateFontFaces;
         for (int i = familyFontFaces->size() - 1; i >= 0; --i) {
             CSSFontFace* candidate = familyFontFaces->at(i).get();
             unsigned candidateTraitsMask = candidate->traitsMask();
             if ((traitsMask & FontStyleNormalMask) && !(candidateTraitsMask & FontStyleNormalMask))
                 continue;
@@ skipping 20 matching lines @@
                 candidateFontFaces.append(candidate);
             }
         }
 
         desiredTraitsMaskForComparison = traitsMask;
         stable_sort(candidateFontFaces.begin(), candidateFontFaces.end(), compareFontFaces);
         unsigned numCandidates = candidateFontFaces.size();
         for (unsigned i = 0; i < numCandidates; ++i)
             face->appendFontFace(candidateFontFaces[i]);
     }
-    return face.get();
+    return face.raw();
 }
 
 void CSSFontSelector::clearDocument()
 {
     if (!m_document) {
         ASSERT(!m_beginLoadingTimer.isActive());
         ASSERT(m_fontsToBeginLoading.isEmpty());
         return;
     }
 
@@ skipping 39 matching lines @@
     }
     // Ensure that if the request count reaches zero, the frame loader will know about it.
     cachedResourceLoader->loadDone(0);
     // New font loads may be triggered by layout after the document load is complete but before we have dispatched
     // didFinishLoading for the frame. Make sure the delegate is always dispatched by checking explicitly.
     if (m_document && m_document->frame())
         m_document->frame()->loader()->checkLoadComplete();
 }
 
 }