[NaCl SDK] Consistent use of copyright header.

native_client_sdk/src/libraries/ppapi_simple/ps_main.cc

-/* Copyright (c) 2012 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.
- */
+// Copyright (c) 2012 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 "ppapi/c/pp_instance.h"
 #include "ppapi/c/pp_module.h"
 
 #include "ppapi_simple/ps_instance.h"
 #include "ppapi_simple/ps_main.h"
 
 
 void* PSMainCreate(PP_Instance inst, PSMainFunc_t func, const char* argv[]) {
   PSInstance* pInst = new PSInstance(inst, argv);
   pInst->SetMain(func);
   return pInst;
 }