Standardize usage of virtual/override/final specifiers.

components/nacl/loader/nonsfi/nonsfi_listener.h

 // Copyright 2014 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.
 
 #ifndef COMPONENTS_NACL_LOADER_NONSFI_NONSFI_LISTENER_H_
 #define COMPONENTS_NACL_LOADER_NONSFI_NONSFI_LISTENER_H_
 
 #include "base/macros.h"
 
 #include "base/memory/ref_counted.h"
@@ skipping 11 matching lines @@
 
 namespace nacl {
 
 struct NaClStartParams;
 
 namespace nonsfi {
 
 class NonSfiListener : public IPC::Listener {
  public:
   NonSfiListener();
-  virtual ~NonSfiListener();
+  ~NonSfiListener() override;
 
   // Listen for a request to launch a non-SFI NaCl module.
   void Listen();
   bool Send(IPC::Message* msg);
 
  private:
-  virtual bool OnMessageReceived(const IPC::Message& msg) override;
+  bool OnMessageReceived(const IPC::Message& msg) override;
   void OnStart(const nacl::NaClStartParams& params);
 
   base::Thread io_thread_;
   base::WaitableEvent shutdown_event_;
   scoped_ptr<IPC::SyncChannel> channel_;
   scoped_refptr<NaClTrustedListener> trusted_listener_;
 
   DISALLOW_COPY_AND_ASSIGN(NonSfiListener);
 };
 
 }  // namespace nonsfi
 }  // namespace nacl
 
 #endif  // COMPONENTS_NACL_LOADER_NONSFI_NONSFI_LISTENER_H_