Standardize usage of virtual/override/final in net/

net/base/chunked_upload_data_stream.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 NET_BASE_CHUNKED_UPLOAD_DATA_STREAM_H_
 #define NET_BASE_CHUNKED_UPLOAD_DATA_STREAM_H_
 
 #include <vector>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_vector.h"
 #include "net/base/completion_callback.h"
 #include "net/base/net_export.h"
 #include "net/base/upload_data_stream.h"
 
 namespace net {
 
 class IOBuffer;
 
 // Class with a push-based interface for uploading data. Buffers all data until
 // the request is completed. Not recommended for uploading large amounts of
 // seekable data, due to this buffering behavior.
 class NET_EXPORT ChunkedUploadDataStream : public UploadDataStream {
  public:
   ChunkedUploadDataStream(int64 identifier);
 
-  virtual ~ChunkedUploadDataStream();
+  ~ChunkedUploadDataStream() override;
 
   // Adds data to the stream. |is_done| should be true if this is the last
   // data to be appended. |data_len| must not be 0 unless |is_done| is true.
   // Once called with |is_done| being true, must never be called again.
   // TODO(mmenke):  Consider using IOBuffers instead, to reduce data copies.
   void AppendData(const char* data, int data_len, bool is_done);
 
  private:
   // UploadDataStream implementation.
-  virtual int InitInternal() override;
-  virtual int ReadInternal(IOBuffer* buf, int buf_len) override;
-  virtual void ResetInternal() override;
+  int InitInternal() override;
+  int ReadInternal(IOBuffer* buf, int buf_len) override;
+  void ResetInternal() override;
 
   int ReadChunk(IOBuffer* buf, int buf_len);
 
   // Index and offset of next element of |upload_data_| to be read.
   size_t read_index_;
   size_t read_offset_;
 
   // True once all data has been appended to the stream.
   bool all_data_appended_;
 
   ScopedVector<std::vector<char>> upload_data_;
 
   // Buffer to write the next read's data to. Only set when a call to
   // ReadInternal reads no data.
   scoped_refptr<IOBuffer> read_buffer_;
   int read_buffer_len_;
 
   DISALLOW_COPY_AND_ASSIGN(ChunkedUploadDataStream);
 };
 
 }  // namespace net
 
 #endif  // NET_BASE_CHUNKED_UPLOAD_DATA_STREAM_H_