Standardize usage of virtual/override/final in remoting/

remoting/client/key_event_mapper.h

 // 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.
 
 #ifndef REMOTING_CLIENT_KEY_EVENT_MAPPER_H_
 #define REMOTING_CLIENT_KEY_EVENT_MAPPER_H_
 
 #include <map>
 #include <set>
 
 #include "base/basictypes.h"
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "remoting/protocol/input_filter.h"
 
 namespace remoting {
 
 // Filtering InputStub which can be used to re-map the USB keycodes of events
 // before they are passed on to the next InputStub in the chain, or to trap
 // events with specific USB keycodes for special handling.
 class KeyEventMapper : public protocol::InputFilter {
  public:
   KeyEventMapper();
   explicit KeyEventMapper(InputStub* input_stub);
-  virtual ~KeyEventMapper();
+  ~KeyEventMapper() override;
 
   // Callback type for use with SetTrapCallback(), below.
   typedef base::Callback<void(const protocol::KeyEvent&)> KeyTrapCallback;
 
   // Sets the callback to which trapped keys will be delivered.
   void SetTrapCallback(KeyTrapCallback callback);
 
   // Causes events matching |usb_keycode| to be delivered to the trap callback.
   // Trapped events are not dispatched to the next InputStub in the chain.
   void TrapKey(uint32 usb_keycode, bool trap_key);
 
   // Causes events matching |in_usb_keycode| to be mapped to |out_usb_keycode|.
   // Keys are remapped at most once. Traps are processed before remapping.
   void RemapKey(uint32 in_usb_keycode, uint32 out_usb_keycode);
 
   // InputFilter overrides.
-  virtual void InjectKeyEvent(const protocol::KeyEvent& event) override;
+  void InjectKeyEvent(const protocol::KeyEvent& event) override;
 
  private:
   std::map<uint32,uint32> mapped_keys;
   std::set<uint32> trapped_keys;
   KeyTrapCallback trap_callback;
 
   DISALLOW_COPY_AND_ASSIGN(KeyEventMapper);
 };
 
 } // namespace remoting
 
 #endif // REMOTING_CLIENT_KEY_EVENT_MAPPER_H_