Remove event_channel() and control_channel() from Session interface.

remoting/protocol/host_event_dispatcher.h

 // Copyright (c) 2011 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_HOST_EVENT_DISPATCHER_H_
 #define REMOTING_PROTOCOL_HOST_EVENT_DISPATCHER_H_
 
-#include "base/basictypes.h"
+#include "remoting/protocol/channel_dispatcher_base.h"
 #include "remoting/protocol/message_reader.h"
 
 namespace remoting {
 namespace protocol {
 
 class EventMessage;
 class InputStub;
-class Session;
 
 // HostEventDispatcher dispatches incoming messages on the event
 // channel to InputStub.
-class HostEventDispatcher {
+class HostEventDispatcher : public ChannelDispatcherBase {
  public:
   typedef base::Callback<void(int64)> SequenceNumberCallback;
 
   HostEventDispatcher();
   virtual ~HostEventDispatcher();
 
-  // Initialize the event channel and the dispatcher for the
-  // |session|. Caller retains ownership of |session|.
-  void Init(Session* session);
-
   // Set InputStub that will be called for each incoming input
   // message. Doesn't take ownership of |input_stub|. It must outlive
   // the dispatcher.
   void set_input_stub(InputStub* input_stub) { input_stub_ = input_stub; }
 
   // Set callback to notify of each message's sequence number. The
   // callback cannot tear down this object.
   void set_sequence_number_callback(const SequenceNumberCallback& value) {
     sequence_number_callback_ = value;
   }
 
+ protected:
+  // ChannelDispatcherBase overrides.
+  virtual void OnInitialized() OVERRIDE;
+
  private:
-  // This method is called by |reader_| when a message is received.
   void OnMessageReceived(EventMessage* message,
                          const base::Closure& done_task);
 
   InputStub* input_stub_;
   SequenceNumberCallback sequence_number_callback_;
 
   ProtobufMessageReader<EventMessage> reader_;
 
   DISALLOW_COPY_AND_ASSIGN(HostEventDispatcher);
 };
 
 }  // namespace protocol
 }  // namespace remoting
 
 #endif  // REMOTING_PROTOCOL_HOST_EVENT_DISPATCHER_H_