Remove remoting::protocol::Transport interface.

remoting/protocol/ice_transport_channel.h

+// Copyright 2015 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 REMOTING_PROTOCOL_ICE_TRANSPORT_CHANNEL_H_
+#define REMOTING_PROTOCOL_ICE_TRANSPORT_CHANNEL_H_
+
+#include <string>
+
+#include "base/callback_forward.h"
+#include "base/macros.h"
+#include "base/threading/thread_checker.h"
+#include "base/timer/timer.h"
+#include "remoting/protocol/network_settings.h"
+#include "remoting/protocol/transport.h"
+#include "third_party/webrtc/base/sigslot.h"
+
+namespace cricket {
+class Candidate;
+class P2PTransportChannel;
+class PortAllocator;
+class TransportChannel;
+class TransportChannelImpl;
+}  // namespace cricket
+
+namespace remoting {
+namespace protocol {
+
+class IceTransportChannel : public sigslot::has_slots<> {
+ public:
+  class Delegate {
+   public:
+    Delegate() {};
+    virtual ~Delegate() {};
+
+    // Called to pass ICE credentials to the session. Used only for STANDARD
+    // version of ICE, see SetIceVersion().
+    virtual void OnTransportIceCredentials(IceTransportChannel* transport,
+                                           const std::string& ufrag,
+                                           const std::string& password) = 0;
+
+    // Called when the transport generates a new candidate that needs
+    // to be passed to the AddRemoteCandidate() method on the remote
+    // end of the connection.
+    virtual void OnTransportCandidate(IceTransportChannel* transport,
+                                      const cricket::Candidate& candidate) = 0;
+
+    // Called when transport route changes. Can be called even before
+    // the transport is connected.
+    virtual void OnTransportRouteChange(IceTransportChannel* transport,
+                                        const TransportRoute& route) = 0;
+
+    // Called when when the transport has failed to connect or reconnect.
+    virtual void OnTransportFailed(IceTransportChannel* transport) = 0;
+
+    // Called when the transport is about to be deleted.
+    virtual void OnTransportDeleted(IceTransportChannel* transport) = 0;
+  };
+
+  typedef base::Callback<void(scoped_ptr<P2PDatagramSocket>)> ConnectedCallback;
+
+  IceTransportChannel(cricket::PortAllocator* port_allocator,
+                      const NetworkSettings& network_settings,
+                      TransportRole role);
+  ~IceTransportChannel() override;
+
+  // Called by IceTransportSession when it has fresh Jingle info.
+  void OnCanStart();
+
+  // Connects the channel and calls the |callback| after that.
+  void Connect(const std::string& name,
+               Delegate* delegate,
+               const ConnectedCallback& callback);
+
+  // Sets remote ICE credentials.
+  void SetRemoteCredentials(const std::string& ufrag,
+                            const std::string& password);
+
+  // Adds |candidate| received from the peer.
+  void AddRemoteCandidate(const cricket::Candidate& candidate);
+
+  // Name of the channel. Used to identify the channel and disambiguate
+  // candidates it generates from candidates generated by parallel connections.
+  const std::string& name() const;
+
+  // Returns true if the channel is already connected.
+  bool is_connected() const;
+
+ private:
+  void DoStart();
+  void NotifyConnected();
+
+  // Signal handlers for cricket::TransportChannel.
+  void OnCandidateGathered(cricket::TransportChannelImpl* channel,
+                           const cricket::Candidate& candidate);
+  void OnRouteChange(cricket::TransportChannel* channel,
+                     const cricket::Candidate& candidate);
+  void OnReceivingState(cricket::TransportChannel* channel);
+  void OnWritableState(cricket::TransportChannel* channel);
+
+  // Callback for TransportChannelSocketAdapter to notify when the socket is
+  // destroyed.
+  void OnChannelDestroyed();
+
+  void NotifyRouteChanged();
+
+  // Tries to connect by restarting ICE. Called by |reconnect_timer_|.
+  void TryReconnect();
+
+  cricket::PortAllocator* port_allocator_;
+  NetworkSettings network_settings_;
+  TransportRole role_;
+
+  std::string name_;
+  Delegate* delegate_;
+  ConnectedCallback callback_;
+  std::string ice_username_fragment_;
+
+  bool can_start_;
+
+  std::string remote_ice_username_fragment_;
+  std::string remote_ice_password_;
+  std::list<cricket::Candidate> pending_candidates_;
+  scoped_ptr<cricket::P2PTransportChannel> channel_;
+  int connect_attempts_left_;
+  base::RepeatingTimer reconnect_timer_;
+
+  base::ThreadChecker thread_checker_;
+
+  base::WeakPtrFactory<IceTransportChannel> weak_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(IceTransportChannel);
+};
+
+}  // namespace protocol
+}  // namespace remoting
+
+#endif  // REMOTING_PROTOCOL_ICE_TRANSPORT_CHANNEL_H_