Added ProcessPacketInterface interface and QuicDispatcher is derived

net/quic/quic_dispatcher.h

Index: net/quic/quic_dispatcher.h
diff --git a/net/quic/quic_dispatcher.h b/net/quic/quic_dispatcher.h
index 1f666742e3fe4617df41df30dffeb10d9b07268d..fa420fc93e670aaceec20e39dc6a173cd9d635d8 100644
--- a/net/quic/quic_dispatcher.h
+++ b/net/quic/quic_dispatcher.h
@@ -46,7 +46,16 @@ class QuicDispatcherPeer;
 
 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;
@@ -68,7 +77,7 @@ class QuicDispatcher : public QuicServerSessionVisitor {
   // 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();