Fix virtual/override/final usage in Source/modules/.

Source/modules/mediasource/SourceBuffer.h

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 48 matching lines @@
     , public FileReaderLoaderClient
     , public WebSourceBufferClient {
     REFCOUNTED_GARBAGE_COLLECTED_EVENT_TARGET(SourceBuffer);
     WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(SourceBuffer);
     DEFINE_WRAPPERTYPEINFO();
 public:
     static SourceBuffer* create(PassOwnPtr<WebSourceBuffer>, MediaSource*, GenericEventQueue*);
     static const AtomicString& segmentsKeyword();
     static const AtomicString& sequenceKeyword();
 
-    virtual ~SourceBuffer();
+    ~SourceBuffer() override;
 
     // SourceBuffer.idl methods
     const AtomicString& mode() const { return m_mode; }
     void setMode(const AtomicString&, ExceptionState&);
     bool updating() const { return m_updating; }
     PassRefPtrWillBeRawPtr<TimeRanges> buffered(ExceptionState&) const;
     double timestampOffset() const;
     void setTimestampOffset(double, ExceptionState&);
     void appendBuffer(PassRefPtr<DOMArrayBuffer> data, ExceptionState&);
     void appendBuffer(PassRefPtr<DOMArrayBufferView> data, ExceptionState&);
     void appendStream(Stream*, ExceptionState&);
     void appendStream(Stream*, unsigned long long maxSize, ExceptionState&);
     void abort(ExceptionState&);
     void remove(double start, double end, ExceptionState&);
     double appendWindowStart() const;
     void setAppendWindowStart(double, ExceptionState&);
     double appendWindowEnd() const;
     void setAppendWindowEnd(double, ExceptionState&);
     TrackDefaultList* trackDefaults() const { return m_trackDefaults.get(); }
     void setTrackDefaults(TrackDefaultList*, ExceptionState&);
 
     void abortIfUpdating();
     void removedFromMediaSource();
 
     // ActiveDOMObject interface
-    virtual bool hasPendingActivity() const override;
-    virtual void suspend() override;
-    virtual void resume() override;
-    virtual void stop() override;
+    bool hasPendingActivity() const override;
+    void suspend() override;
+    void resume() override;
+    void stop() override;
 
     // EventTarget interface
-    virtual ExecutionContext* executionContext() const override;
-    virtual const AtomicString& interfaceName() const override;
+    ExecutionContext* executionContext() const override;
+    const AtomicString& interfaceName() const override;
 
     // WebSourceBufferClient interface
-    virtual void initializationSegmentReceived() override;
+    void initializationSegmentReceived() override;
 
     // Oilpan: eagerly release owned m_webSourceBuffer
     EAGERLY_FINALIZE();
     DECLARE_VIRTUAL_TRACE();
 
 private:
     SourceBuffer(PassOwnPtr<WebSourceBuffer>, MediaSource*, GenericEventQueue*);
 
     bool isRemoved() const;
     void scheduleEvent(const AtomicString& eventName);
 
     void appendBufferInternal(const unsigned char*, unsigned, ExceptionState&);
     void appendBufferAsyncPart();
 
     void removeAsyncPart();
 
     void appendStreamInternal(Stream*, ExceptionState&);
     void appendStreamAsyncPart();
     void appendStreamDone(bool success);
     void clearAppendStreamState();
 
     // FileReaderLoaderClient interface
-    virtual void didStartLoading() override;
-    virtual void didReceiveDataForClient(const char* data, unsigned dataLength) override;
-    virtual void didFinishLoading() override;
-    virtual void didFail(FileError::ErrorCode) override;
+    void didStartLoading() override;
+    void didReceiveDataForClient(const char* data, unsigned dataLength) override;
+    void didFinishLoading() override;
+    void didFail(FileError::ErrorCode) override;
 
     OwnPtr<WebSourceBuffer> m_webSourceBuffer;
     Member<MediaSource> m_source;
     Member<TrackDefaultList> m_trackDefaults;
     RawPtrWillBeMember<GenericEventQueue> m_asyncEventQueue;
 
     AtomicString m_mode;
     bool m_updating;
     double m_timestampOffset;
     double m_appendWindowStart;
@@ skipping 11 matching lines @@
     bool m_streamMaxSizeValid;
     unsigned long long m_streamMaxSize;
     AsyncMethodRunner<SourceBuffer> m_appendStreamAsyncPartRunner;
     Member<Stream> m_stream;
     OwnPtr<FileReaderLoader> m_loader;
 };
 
 } // namespace blink
 
 #endif // SourceBuffer_h