Update Native Client Authors to be Chromium Authors for the code moved from the

ppapi/native_client/tests/ppapi_geturl/module.cc

-// Copyright (c) 2011 The Native Client Authors. All rights reserved.
+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "native_client/tests/ppapi_geturl/module.h"
 
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 
 #include <string>
@@ skipping 302 matching lines @@
   printf("--- ReportResult posts result string:\n\t%s\n", result.c_str());
   struct PP_Var var_result = StrToVar(result);
   ppb_messaging_interface()->PostMessage(pp_instance, var_result);
   // If the message was created using VarFromUtf8() it needs to be released.
   // See the comments about VarFromUtf8() in ppapi/c/ppb_var.h for more
   // information.
   if (var_result.type == PP_VARTYPE_STRING) {
     ppb_var_interface()->Release(var_result);
   }
 }