Get rid of custom constructor for FormData

Source/bindings/v8/custom/V8FormDataCustom.cpp

 /*
  * Copyright (C) 2010 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 21 matching lines @@
 #include "V8FormData.h"
 
 #include "V8Blob.h"
 #include "V8HTMLFormElement.h"
 #include "bindings/v8/V8Binding.h"
 #include "bindings/v8/V8Utilities.h"
 #include "core/html/DOMFormData.h"
 
 namespace WebCore {
 
-void V8FormData::constructorCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
-{
-    HTMLFormElement* form = 0;
-    if (info.Length() > 0 && V8HTMLFormElement::HasInstance(info[0], info.GetIsolate(), worldType(info.GetIsolate())))
-        form = V8HTMLFormElement::toNative(info[0]->ToObject());
-    RefPtr<DOMFormData> domFormData = DOMFormData::create(form);
-
-    v8::Handle<v8::Object> wrapper = info.Holder();
-    V8DOMWrapper::associateObjectWithWrapper<V8FormData>(domFormData.release(), &wrapperTypeInfo, wrapper, info.GetIsolate(), WrapperConfiguration::Dependent);
-    info.GetReturnValue().Set(wrapper);
-}
-
 void V8FormData::appendMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     if (info.Length() < 2) {
         throwError(v8SyntaxError, "Not enough arguments", info.GetIsolate());
         return;
     }
 
     DOMFormData* domFormData = V8FormData::toNative(info.Holder());
 
     String name = toWebCoreStringWithNullCheck(info[0]);
 
     v8::Handle<v8::Value> arg = info[1];
     if (V8Blob::HasInstance(arg, info.GetIsolate(), worldType(info.GetIsolate()))) {
         v8::Handle<v8::Object> object = v8::Handle<v8::Object>::Cast(arg);
         Blob* blob = V8Blob::toNative(object);
         ASSERT(blob);
 
         String filename;
         if (info.Length() >= 3 && !info[2]->IsUndefined())
             filename = toWebCoreStringWithNullCheck(info[2]);
 
         domFormData->append(name, blob, filename);
     } else
         domFormData->append(name, toWebCoreStringWithNullCheck(arg));
 }
 
 } // namespace WebCore