[oilpan] Move CSSFontFace and CSSSegmentedFontFace to the managed heap

Source/heap/Visitor.h

Index: Source/heap/Visitor.h
diff --git a/Source/heap/Visitor.h b/Source/heap/Visitor.h
index 5dfaf655dc7882c3da6834993ff430e47e2e8cbe..dad9770ddf183325377bc4b791e56696b0d1158c 100644
--- a/Source/heap/Visitor.h
+++ b/Source/heap/Visitor.h
@@ -32,6 +32,7 @@
 #define Visitor_h
 
 #include <wtf/Forward.h>
+#include <wtf/HashSet.h>
 
 namespace WebCore {
 
@@ -120,6 +121,20 @@ public:
             visit(*it);
     }
 
+    template<typename T, size_t N>
+    void visit(const Vector<Member<T>, N>& vector)
+    {
+        for (typename Vector<Member<T> >::const_iterator it = vector.begin(); it != vector.end(); ++it)
+            visit(*it);
+    }
+
+    template<typename T>
+    void visit(const HashSet<Member<T> >& vector)
+    {
+        for (typename HashSet<Member<T> >::const_iterator it = vector.begin(); it != vector.end(); ++it)
+            visit(*it);
+    }
+
     // This method adds the object to the set of objects that should have their
     // accept method called. Since not all objects have vtables we have to have
     // the callback as an explicit argument, but we can use the templated