Replace several uses of toWebCoreString() by V8TRYCATCH_FOR_V8STRINGRESOURCE() macro

Source/bindings/v8/custom/V8HTMLFormControlsCollectionCustom.cpp

 /*
  * Copyright (C) 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 38 matching lines @@
         return v8Undefined();
 
     if (namedItems.size() == 1)
         return toV8(namedItems.at(0).release(), callbackInfo.Holder(), callbackInfo.GetIsolate());
 
     return toV8(collection->ownerNode()->radioNodeList(name).get(), callbackInfo.Holder(), callbackInfo.GetIsolate());
 }
 
 void V8HTMLFormControlsCollection::namedItemMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& args)
 {
+    V8TRYCATCH_FOR_V8STRINGRESOURCE_VOID(V8StringResource<>, name, args[0]);
     HTMLFormControlsCollection* imp = V8HTMLFormControlsCollection::toNative(args.Holder());
-    v8::Handle<v8::Value> result = getNamedItems(imp, toWebCoreString(args[0]), args);
+    v8::Handle<v8::Value> result = getNamedItems(imp, name, args);
 
     if (result.IsEmpty()) {
         v8SetReturnValueNull(args);
         return;
     }
 
     v8SetReturnValue(args, result);
 }
 
 } // namespace WebCore