Revert of Limit the usage of SharedPersistent to ScriptValue only

Source/bindings/v8/ScriptValue.h

 /*
  * Copyright (C) 2008, 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 13 matching lines @@
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef ScriptValue_h
 #define ScriptValue_h
 
-#include "bindings/v8/ScopedPersistent.h"
-#include "wtf/RefCounted.h"
+#include "bindings/v8/SharedPersistent.h"
+#include "wtf/PassRefPtr.h"
 #include "wtf/RefPtr.h"
 #include "wtf/text/WTFString.h"
 #include <v8.h>
 
 namespace WebCore {
 
 class JSONValue;
 class ScriptState;
 
 class ScriptValue {
 public:
     ScriptValue()
         : m_isolate(0)
     { }
 
     virtual ~ScriptValue();
 
     ScriptValue(v8::Handle<v8::Value> value, v8::Isolate* isolate)
         : m_isolate(isolate)
-        , m_value(value.IsEmpty() ? 0 : SharedPersistent::create(value, isolate))
+        , m_value(value.IsEmpty() ? 0 : SharedPersistent<v8::Value>::create(value, isolate))
     {
     }
 
     ScriptValue(const ScriptValue& value)
         : m_isolate(value.m_isolate)
         , m_value(value.m_value)
     {
     }
 
     v8::Isolate* isolate() const
@@ skipping 92 matching lines @@
     {
         return m_value.get() ? m_value->newLocal(m_isolate) : v8::Handle<v8::Value>();
     }
 
     bool getString(String& result) const;
     String toString() const;
 
     PassRefPtr<JSONValue> toJSONValue(ScriptState*) const;
 
 private:
-    class SharedPersistent : public RefCounted<SharedPersistent> {
-        WTF_MAKE_NONCOPYABLE(SharedPersistent);
-    public:
-        static PassRefPtr<SharedPersistent> create(v8::Handle<v8::Value> value, v8::Isolate* isolate)
-        {
-            return adoptRef(new SharedPersistent(value, isolate));
-        }
-
-        v8::Local<v8::Value> newLocal(v8::Isolate* isolate) const
-        {
-            return m_value.newLocal(isolate);
-        }
-
-        bool isEmpty() { return m_value.isEmpty(); }
-
-        bool operator==(const SharedPersistent& other)
-        {
-            return m_value == other.m_value;
-        }
-
-    private:
-        SharedPersistent(v8::Handle<v8::Value> value, v8::Isolate* isolate)
-            : m_value(isolate, value)
-        {
-        }
-
-        ScopedPersistent<v8::Value> m_value;
-    };
-
     mutable v8::Isolate* m_isolate;
-    RefPtr<SharedPersistent> m_value;
+    RefPtr<SharedPersistent<v8::Value> > m_value;
 };
 
 } // namespace WebCore
 
 #endif // ScriptValue_h