Add OVERRIDE to net/.

net/base/gzip_filter.h

 // Copyright (c) 2011 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.
 
 // GZipFilter applies gzip and deflate content encoding/decoding to a data
 // stream. As specified by HTTP 1.1, with gzip encoding the content is
 // wrapped with a gzip header, and with deflate encoding the content is in
 // a raw, headerless DEFLATE stream.
 //
 // Internally GZipFilter uses zlib inflate to do decoding.
@@ skipping 31 matching lines @@
   // The function returns FilterStatus. See filter.h for its description.
   //
   // Upon entry, *dest_len is the total size (in number of chars) of the
   // destination buffer. Upon exit, *dest_len is the actual number of chars
   // written into the destination buffer.
   //
   // This function will fail if there is no pre-filter data in the
   // stream_buffer_. On the other hand, *dest_len can be 0 upon successful
   // return. For example, the internal zlib may process some pre-filter data
   // but not produce output yet.
-  virtual FilterStatus ReadFilteredData(char* dest_buffer, int* dest_len);
+  virtual FilterStatus ReadFilteredData(char* dest_buffer,
+                                        int* dest_len) OVERRIDE;
 
  private:
   enum DecodingStatus {
     DECODING_UNINITIALIZED,
     DECODING_IN_PROGRESS,
     DECODING_DONE,
     DECODING_ERROR
   };
 
   enum DecodingMode {
@@ skipping 79 matching lines @@
   // If this flag is set, then we will revert to being a pass through filter if
   // we don't get a valid gzip header.
   bool possible_sdch_pass_through_;
 
   DISALLOW_COPY_AND_ASSIGN(GZipFilter);
 };
 
 }  // namespace net
 
 #endif  // NET_BASE_GZIP_FILTER_H__