Added ProcessPacketInterface interface and QuicDispatcher is derived

net/quic/quic_dispatcher.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.
 //
 // A server side dispatcher which dispatches a given client's data to their
 // stream.
 
 #ifndef NET_QUIC_QUIC_DISPATCHER_H_
 #define NET_QUIC_QUIC_DISPATCHER_H_
 
@@ skipping 28 matching lines @@
 class QuicPacketWriterWrapper;
 class QuicSession;
 class UDPServerSocket;
 
 namespace test {
 class QuicDispatcherPeer;
 }  // namespace test
 
 class DeleteSessionsAlarm;
 
-class QuicDispatcher : public QuicServerSessionVisitor {
+class ProcessPacketInterface {
+ public:
+  virtual ~ProcessPacketInterface() {}
+  virtual void ProcessPacket(const IPEndPoint& server_address,
+                             const IPEndPoint& client_address,
+                             const QuicEncryptedPacket& packet) = 0;
+};
+
+class QuicDispatcher : public QuicServerSessionVisitor,
+                       public ProcessPacketInterface {
  public:
   // Ideally we'd have a linked_hash_set: the  boolean is unused.
   typedef linked_hash_map<QuicBlockedWriterInterface*, bool> WriteBlockedList;
 
   // Due to the way delete_sessions_closure_ is registered, the Dispatcher
   // must live until epoll_server Shutdown. |supported_versions| specifies the
   // list of supported QUIC versions.
   QuicDispatcher(const QuicConfig& config,
                  const QuicCryptoServerConfig& crypto_config,
                  const QuicVersionVector& supported_versions,
                  QuicConnectionHelperInterface* helper);
 
   virtual ~QuicDispatcher();
 
   // Takes ownership of the packet writer
   virtual void Initialize(QuicPacketWriter* writer);
 
   // Process the incoming packet by creating a new session, passing it to
   // an existing session, or passing it to the TimeWaitListManager.
   virtual void ProcessPacket(const IPEndPoint& server_address,
                              const IPEndPoint& client_address,
-                             const QuicEncryptedPacket& packet);
+                             const QuicEncryptedPacket& packet) OVERRIDE;
 
   // Called when the socket becomes writable to allow queued writes to happen.
   virtual void OnCanWrite();
 
   // Returns true if there's anything in the blocked writer list.
   virtual bool HasPendingWrites() const;
 
   // Sends ConnectionClose frames to all connected clients.
   void Shutdown();
 
@@ skipping 139 matching lines @@
 
   QuicFramer framer_;
   scoped_ptr<QuicFramerVisitor> framer_visitor_;
 
   DISALLOW_COPY_AND_ASSIGN(QuicDispatcher);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_QUIC_DISPATCHER_H_