XMLHttpRequest#responseText should use a rope

Source/bindings/v8/ScriptString.h

Index: Source/bindings/v8/ScriptString.h
diff --git a/Source/core/platform/SerializedResource.h b/Source/bindings/v8/ScriptString.h
similarity index 81%
copy from Source/core/platform/SerializedResource.h
copy to Source/bindings/v8/ScriptString.h
index 76fd022cd596ce5339cf92d1d20761ed0ed411d9..14467c7eb9feb0e4c7780ef86d013820b5f2174f 100644
--- a/Source/core/platform/SerializedResource.h
+++ b/Source/bindings/v8/ScriptString.h
@@ -28,29 +28,24 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef SerializedResource_h
-#define SerializedResource_h
+#ifndef ScriptString_h
+#define ScriptString_h
 
-#include "core/platform/SharedBuffer.h"
-#include "weborigin/KURL.h"
+#include "bindings/v8/ScriptValue.h"
+#include "bindings/v8/V8Binding.h"
 #include "wtf/text/WTFString.h"
 
 namespace WebCore {
 
-struct SerializedResource {
-    KURL url;
-    String mimeType;
-    RefPtr<SharedBuffer> data;
+class ScriptString : public ScriptValue {
+public:
+    ScriptString() { }
+    explicit ScriptString(v8::Handle<v8::String> value) : ScriptValue(value) { }
 
-    SerializedResource(const KURL& url, const String& mimeType, PassRefPtr<SharedBuffer> data)
-        : url(url)
-        , mimeType(mimeType)
-        , data(data)
-    {
-    }
+    ScriptString concatenateWith(const String&);
+    String flattenToString() const;
 };
 
-}
-
-#endif // SerializedResource_h
+} // namespace WebCore
 
+#endif // ScriptString_h