Remove WritePacket() from internal server's QuicDispatcher;

net/tools/quic/quic_dispatcher.h

Index: net/tools/quic/quic_dispatcher.h
diff --git a/net/tools/quic/quic_dispatcher.h b/net/tools/quic/quic_dispatcher.h
index a3482b8dc28679b54b780e8cf65279652713752b..577b4d0dc3659332a5664077e940a4b073c6c916 100644
--- a/net/tools/quic/quic_dispatcher.h
+++ b/net/tools/quic/quic_dispatcher.h
@@ -64,10 +64,12 @@ class QuicDispatcher : public QuicPacketWriter, public QuicSessionOwner {
   QuicDispatcher(const QuicConfig& config,
                  const QuicCryptoServerConfig& crypto_config,
                  const QuicVersionVector& supported_versions,
-                 int fd,
                  EpollServer* epoll_server);
+
   virtual ~QuicDispatcher();
 
+  void Initialize(int fd);
+
   // QuicPacketWriter
   virtual WriteResult WritePacket(
       const char* buffer, size_t buf_len,
@@ -96,9 +98,6 @@ class QuicDispatcher : public QuicPacketWriter, public QuicSessionOwner {
   // Ensure that the closed connection is cleaned up asynchronously.
   virtual void OnConnectionClosed(QuicGuid guid, QuicErrorCode error) OVERRIDE;
 
-  // Replaces the packet writer with one that uses |fd|.
-  void set_fd(int fd);
-
   typedef base::hash_map<QuicGuid, QuicSession*> SessionMap;
 
   virtual QuicSession* CreateQuicSession(
@@ -114,6 +113,18 @@ class QuicDispatcher : public QuicPacketWriter, public QuicSessionOwner {
   WriteBlockedList* write_blocked_list() { return &write_blocked_list_; }
 
  protected:
+  // Instantiates a new low-level packet writer. Caller takes ownership of the
+  // returned object.
+  QuicPacketWriter* CreateWriter(int fd);
+
+  // Instantiates a new top-level writer wrapper. Takes ownership of |writer|.
+  // Caller takes ownership of the returned object.
+  virtual QuicPacketWriterWrapper* CreateWriterWrapper(
+      QuicPacketWriter* writer);
+
+  // Replaces the packet writer with |writer|. Takes ownership of |writer|.
+  void set_writer(QuicPacketWriter* writer);
+
   QuicTimeWaitListManager* time_wait_list_manager() {
     return time_wait_list_manager_.get();
   }