Standardize usage of virtual/override/final in net/

net/websockets/websocket_deflate_predictor_impl.h

Index: net/websockets/websocket_deflate_predictor_impl.h
diff --git a/net/websockets/websocket_deflate_predictor_impl.h b/net/websockets/websocket_deflate_predictor_impl.h
index d6b52c47d5be01ae86d4295631fe8eac01777035..680ec56290ae539cd709cb588d2d42c543d70ef9 100644
--- a/net/websockets/websocket_deflate_predictor_impl.h
+++ b/net/websockets/websocket_deflate_predictor_impl.h
@@ -18,12 +18,12 @@ struct WebSocketFrame;
 class NET_EXPORT_PRIVATE WebSocketDeflatePredictorImpl
     : public WebSocketDeflatePredictor {
  public:
-  virtual ~WebSocketDeflatePredictorImpl() {}
+  ~WebSocketDeflatePredictorImpl() override {}
 
-  virtual Result Predict(const ScopedVector<WebSocketFrame>& frames,
-                         size_t frame_index) override;
-  virtual void RecordInputDataFrame(const WebSocketFrame* frame) override;
-  virtual void RecordWrittenDataFrame(const WebSocketFrame* frame) override;
+  Result Predict(const ScopedVector<WebSocketFrame>& frames,
+                 size_t frame_index) override;
+  void RecordInputDataFrame(const WebSocketFrame* frame) override;
+  void RecordWrittenDataFrame(const WebSocketFrame* frame) override;
 };
 
 }  // namespace net