[ON HOLD] Deallocate read buffer in MDnsClientImpl::SocketHandler if done reading

net/dns/mdns_client_impl.h

 // Copyright 2013 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_DNS_MDNS_CLIENT_IMPL_H_
 #define NET_DNS_MDNS_CLIENT_IMPL_H_
 
 #include <stdint.h>
 
 #include <map>
@@ skipping 58 matching lines @@
   class SocketHandler {
    public:
     SocketHandler(std::unique_ptr<DatagramServerSocket> socket,
                   MDnsConnection* connection);
     ~SocketHandler();
 
     int Start();
     void Send(const scoped_refptr<IOBuffer>& buffer, unsigned size);
 
    private:
-    int DoLoop(int rv);
+    int DoRead(int rv);
     void OnDatagramReceived(int rv);
 
     // Callback for when sending a query has finished.
     void SendDone(int rv);
 
     std::unique_ptr<DatagramServerSocket> socket_;
     MDnsConnection* connection_;
     IPEndPoint recv_addr_;
-    DnsResponse response_;
+    std::unique_ptr<DnsResponse> response_;
     IPEndPoint multicast_addr_;
     bool send_in_progress_;
     std::queue<std::pair<scoped_refptr<IOBuffer>, unsigned> > send_queue_;
 
     DISALLOW_COPY_AND_ASSIGN(SocketHandler);
   };
 
   // Callback for handling a datagram being received on either ipv4 or ipv6.
   void OnDatagramReceived(DnsResponse* response,
                           const IPEndPoint& recv_addr,
@@ skipping 227 matching lines @@
   MDnsClientImpl* client_;
 
   bool started_;
   int flags_;
 
   DISALLOW_COPY_AND_ASSIGN(MDnsTransactionImpl);
 };
 
 }  // namespace net
 #endif  // NET_DNS_MDNS_CLIENT_IMPL_H_