Standardize usage of virtual/override/final in content/browser/

content/browser/media/midi_host.h

 // 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.
 
 #ifndef CONTENT_BROWSER_MEDIA_MIDI_HOST_H_
 #define CONTENT_BROWSER_MEDIA_MIDI_HOST_H_
 
 #include <vector>
 
 #include "base/gtest_prod_util.h"
@@ skipping 13 matching lines @@
 namespace content {
 
 class CONTENT_EXPORT MidiHost
     : public BrowserMessageFilter,
       public media::MidiManagerClient {
  public:
   // Called from UI thread from the owner of this object.
   MidiHost(int renderer_process_id, media::MidiManager* midi_manager);
 
   // BrowserMessageFilter implementation.
-  virtual void OnDestruct() const override;
-  virtual bool OnMessageReceived(const IPC::Message& message) override;
+  void OnDestruct() const override;
+  bool OnMessageReceived(const IPC::Message& message) override;
 
   // MidiManagerClient implementation.
-  virtual void CompleteStartSession(int client_id,
-                                    media::MidiResult result) override;
-  virtual void ReceiveMidiData(uint32 port,
-                               const uint8* data,
-                               size_t length,
-                               double timestamp) override;
-  virtual void AccumulateMidiBytesSent(size_t n) override;
+  void CompleteStartSession(int client_id, media::MidiResult result) override;
+  void ReceiveMidiData(uint32 port,
+                       const uint8* data,
+                       size_t length,
+                       double timestamp) override;
+  void AccumulateMidiBytesSent(size_t n) override;
 
   // Start session to access MIDI hardware.
   void OnStartSession(int client_id);
 
   // Data to be sent to a MIDI output port.
   void OnSendData(uint32 port,
                   const std::vector<uint8>& data,
                   double timestamp);
 
  private:
   FRIEND_TEST_ALL_PREFIXES(MidiHostTest, IsValidWebMIDIData);
   friend class base::DeleteHelper<MidiHost>;
   friend class BrowserThread;
 
-  virtual ~MidiHost();
+  ~MidiHost() override;
 
   // Returns true if |data| fulfills the requirements of MidiOutput.send API
   // defined in the WebMIDI spec.
   // - |data| must be any number of complete MIDI messages (data abbreviation
   //    called "running status" is disallowed).
   // - 1-byte MIDI realtime messages can be placed at any position of |data|.
   static bool IsValidWebMIDIData(const std::vector<uint8>& data);
 
   int renderer_process_id_;
 
@@ skipping 21 matching lines @@
 
   // Protects access to |sent_bytes_in_flight_|.
   base::Lock in_flight_lock_;
 
   DISALLOW_COPY_AND_ASSIGN(MidiHost);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_MEDIA_MIDI_HOST_H_