Use v8AtomicString instead of v8::String::NewFromUtf8

Source/bindings/v8/NPV8Object.cpp

 /*
  * Copyright (C) 2004, 2006 Apple Computer, Inc.  All rights reserved.
  * Copyright (C) 2007, 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 524 matching lines @@
         // FIXME: Figure out how to cache this helper function.  Run a helper function that collects the properties
         // on the object into an array.
         const char enumeratorCode[] =
             "(function (obj) {"
             "  var props = [];"
             "  for (var prop in obj) {"
             "    props[props.length] = prop;"
             "  }"
             "  return props;"
             "});";
-        v8::Handle<v8::String> source = v8::String::NewFromUtf8(isolate, enumeratorCode);
+        v8::Handle<v8::String> source = v8AtomicString(isolate, enumeratorCode);
         v8::Handle<v8::Value> result = V8ScriptRunner::compileAndRunInternalScript(source, context->GetIsolate());
         ASSERT(!result.IsEmpty());
         ASSERT(result->IsFunction());
         v8::Handle<v8::Function> enumerator = v8::Handle<v8::Function>::Cast(result);
         v8::Handle<v8::Value> argv[] = { obj };
         v8::Local<v8::Value> propsObj = V8ScriptRunner::callInternalFunction(enumerator, v8::Handle<v8::Object>::Cast(result), WTF_ARRAY_LENGTH(argv), argv, context->GetIsolate());
         if (propsObj.IsEmpty())
             return false;
 
         // Convert the results into an array of NPIdentifiers.
@@ skipping 48 matching lines @@
 
         convertV8ObjectToNPVariant(resultObject, npObject, result, isolate);
         return true;
     }
 
     if (NP_CLASS_STRUCT_VERSION_HAS_CTOR(npObject->_class) && npObject->_class->construct)
         return npObject->_class->construct(npObject, arguments, argumentCount, result);
 
     return false;
 }