Add the override annotation to all necessary methods in .../quic/.

net/quic/quic_connection.h

 // Copyright (c) 2012 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.
 //
 // The entity that handles framing writes for a Quic client or server.
 // Each QuicSession will have a connection associated with it.
 //
 // On the server side, the Dispatcher handles the raw reads, and hands off
 // packets via ProcessUdpPacket for framing and processing.
 //
@@ skipping 176 matching lines @@
   };
 
   // Constructs a new QuicConnection for the specified |guid| and |address|.
   // |helper| and |writer| must outlive this connection.
   QuicConnection(QuicGuid guid,
                  IPEndPoint address,
                  QuicConnectionHelperInterface* helper,
                  QuicPacketWriter* writer,
                  bool is_server,
                  const QuicVersionVector& supported_versions);
-  virtual ~QuicConnection();
+  virtual ~QuicConnection() OVERRIDE;
 
   // Sets connection parameters from the supplied |config|.
   void SetFromConfig(const QuicConfig& config);
 
   // Send the data in |data| to the peer in as few packets as possible.
   // Returns a pair with the number of bytes consumed from data, and a boolean
   // indicating if the fin bit was consumed.  This does not indicate the data
   // has been sent on the wire: it may have been turned into a packet and queued
   // if the socket was unexpectedly blocked.
   // If |delegate| is provided, then it will be informed once ACKs have been
@@ skipping 506 matching lines @@
   // If non-empty this contains the set of versions received in a
   // version negotiation packet.
   QuicVersionVector server_supported_versions_;
 
   DISALLOW_COPY_AND_ASSIGN(QuicConnection);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_QUIC_CONNECTION_H_