[NaCl SDK] Consistent use of copyright header.

native_client_sdk/src/libraries/nacl_io/kernel_handle.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 "nacl_io/kernel_handle.h"
 
 #include <errno.h>
 #include <fcntl.h>
 #include <pthread.h>
 
 #include "nacl_io/mount.h"
 #include "nacl_io/mount_node.h"
 #include "nacl_io/osunistd.h"
 
@@ skipping 78 matching lines @@
 Error KernelHandle::GetDents(struct dirent* pdir, size_t nbytes, int* cnt) {
   AUTO_LOCK(offs_lock_);
   Error error = node_->GetDents(offs_, pdir, nbytes, cnt);
   if (0 == error)
     offs_ += *cnt;
   return error;
 }
 
 const ScopedRef<MountNode>& KernelHandle::node() { return node_; }
 const ScopedRef<Mount>& KernelHandle::mount() { return mount_; }