[oilpan] Move CSSFontFace to the managed heap

Source/core/css/CSSFontFace.h

Index: Source/core/css/CSSFontFace.h
diff --git a/Source/core/css/CSSFontFace.h b/Source/core/css/CSSFontFace.h
index e921f5023d841d7d4c8e985e877c33c86bb9c620..128ab417444cddecdff5e25d99884106c4732fa8 100644
--- a/Source/core/css/CSSFontFace.h
+++ b/Source/core/css/CSSFontFace.h
@@ -28,23 +28,24 @@
 
 #include "core/css/CSSFontFaceRule.h"
 #include "core/css/CSSFontFaceSource.h"
+#include "core/css/CSSSegmentedFontFace.h"
 #include "core/platform/graphics/FontTraitsMask.h"
+#include "heap/Handle.h"
 #include <wtf/Forward.h>
 #include <wtf/HashSet.h>
 #include <wtf/PassRefPtr.h>
-#include <wtf/RefCounted.h>
 #include <wtf/unicode/Unicode.h>
 #include <wtf/Vector.h>
 
 namespace WebCore {
 
-class CSSSegmentedFontFace;
 class FontDescription;
 class SimpleFontData;
 
-class CSSFontFace : public RefCounted<CSSFontFace> {
+class CSSFontFace : public HeapAllocatedFinalized<CSSFontFace> {
+    DECLARE_GC_TYPE_MARKER
 public:
-    static PassRefPtr<CSSFontFace> create(FontTraitsMask traitsMask, Handle<CSSFontFaceRule> rule, bool isLocalFallback = false) { return adoptRef(new CSSFontFace(traitsMask, rule, isLocalFallback)); }
+    static Result<CSSFontFace> create(FontTraitsMask traitsMask, Handle<CSSFontFaceRule> rule, bool isLocalFallback = false) { return adopt(new CSSFontFace(traitsMask, rule, isLocalFallback)); }
 
     FontTraitsMask traitsMask() const { return m_traitsMask; }
 
@@ -54,7 +55,6 @@ public:
     const Vector<UnicodeRange>& ranges() const { return m_ranges; }
 
     void addedToSegmentedFontFace(Handle<CSSSegmentedFontFace>);
-    void removedFromSegmentedFontFace(Handle<CSSSegmentedFontFace>);
 
     bool isLoaded() const;
     bool isValid() const;
@@ -89,6 +89,9 @@ public:
     enum LoadState { NotLoaded, Loading, Loaded, Error };
     LoadState loadState() const { return m_loadState; }
 
+    void accept(Visitor*) const;
+    void dispose();
+
 private:
     CSSFontFace(FontTraitsMask traitsMask, Handle<CSSFontFaceRule> rule, bool isLocalFallback)
         : m_traitsMask(traitsMask)
@@ -102,12 +105,12 @@ private:
 
     FontTraitsMask m_traitsMask;
     Vector<UnicodeRange> m_ranges;
-    HashSet<CSSSegmentedFontFace*> m_segmentedFontFaces;
+    HashSet<Member<CSSSegmentedFontFace> > m_segmentedFontFaces;
     Vector<OwnPtr<CSSFontFaceSource> > m_sources;
     CSSFontFaceSource* m_activeSource;
     bool m_isLocalFallback;
     LoadState m_loadState;
-    Persistent<CSSFontFaceRule> m_rule;
+    Member<CSSFontFaceRule> m_rule;
     void notifyFontLoader(LoadState);
 };