[NaCl SDK] Consistent use of copyright header.

native_client_sdk/src/libraries/ppapi_simple/ps_event.cc

-/* Copyright (c) 2013 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) 2013 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_event.h"
 #include "ppapi_simple/ps_instance.h"
 #include "ppapi_simple/ps_main.h"
 
 
 void PSEventPost(PSEventType type) {
@@ skipping 21 matching lines @@
 }
 
 void PSEventRelease(PSEvent* event) {
   PSInstance::GetInstance()->ReleaseEvent(event);
 }
 
 void PSEventSetFilter(PSEventTypeMask filter) {
   PSInstance::GetInstance()->SetEnabledEvents(filter);
 }