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

Source/bindings/v8/custom/V8HTMLOptionsCollectionCustom.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 47 matching lines @@
     if (namedItems.size() == 1) {
         v8SetReturnValueFast(callbackInfo, namedItems.at(0).release(), collection);
         return;
     }
 
     v8SetReturnValueFast(callbackInfo, NamedNodesCollection::create(namedItems), collection);
 }
 
 void V8HTMLOptionsCollection::namedItemMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& args)
 {
+    V8TRYCATCH_FOR_V8STRINGRESOURCE_VOID(V8StringResource<>, name, args[0]);
     HTMLOptionsCollection* imp = V8HTMLOptionsCollection::toNative(args.Holder());
-    getNamedItems(imp, toWebCoreString(args[0]), args);
+    getNamedItems(imp, name, args);
 }
 
 void V8HTMLOptionsCollection::addMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& args)
 {
     if (!V8HTMLOptionElement::HasInstance(args[0], args.GetIsolate(), worldType(args.GetIsolate()))) {
         setDOMException(TypeMismatchError, args.GetIsolate());
         return;
     }
     HTMLOptionsCollection* imp = V8HTMLOptionsCollection::toNative(args.Holder());
     HTMLOptionElement* option = V8HTMLOptionElement::toNative(v8::Handle<v8::Object>(v8::Handle<v8::Object>::Cast(args[0])));
@@ skipping 28 matching lines @@
             newLength = static_cast<unsigned>(v);
     }
 
     if (es.throwIfNeeded())
         return;
 
     imp->setLength(newLength, es);
 }
 
 } // namespace WebCore