Implement video frame acknowledgements in the chromoting protocol.

remoting/protocol/channel_dispatcher_base.cc

 // Copyright (c) 2012 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.
 
 #include "remoting/protocol/channel_dispatcher_base.h"
 
 #include "base/bind.h"
 #include "net/socket/stream_socket.h"
 #include "remoting/protocol/session.h"
 #include "remoting/protocol/session_config.h"
@@ skipping 11 matching lines @@
 ChannelDispatcherBase::~ChannelDispatcherBase() {
   writer()->Close();
   if (channel_factory_)
     channel_factory_->CancelChannelCreation(channel_name_);
 }
 
 void ChannelDispatcherBase::Init(Session* session,
                                  const ChannelConfig& config,
                                  EventHandler* event_handler) {
   DCHECK(session);
-  switch (config.transport) {
+  channel_config_ = config;
+  switch (channel_config_.transport) {
     case ChannelConfig::TRANSPORT_MUX_STREAM:
       channel_factory_ = session->GetMultiplexedChannelFactory();
       break;
 
     case ChannelConfig::TRANSPORT_STREAM:
       channel_factory_ = session->GetTransportChannelFactory();
       break;
 
     default:
-      LOG(FATAL) << "Unknown transport type: " << config.transport;
+      LOG(FATAL) << "Unknown transport type: " << channel_config_.transport;
   }
 
   event_handler_ = event_handler;
 
   channel_factory_->CreateChannel(channel_name_, base::Bind(
       &ChannelDispatcherBase::OnChannelReady, base::Unretained(this)));
 }
 
+void ChannelDispatcherBase::NotifyError(ErrorCode error) {
+  event_handler_->OnChannelError(this, error);
+}
+
 void ChannelDispatcherBase::OnChannelReady(
     scoped_ptr<net::StreamSocket> socket) {
   if (!socket.get()) {
-    event_handler_->OnChannelError(this, CHANNEL_CONNECTION_ERROR);
+    NotifyError(CHANNEL_CONNECTION_ERROR);
     return;
   }
 
   channel_factory_ = nullptr;
   channel_ = socket.Pass();
   writer_.Init(channel_.get(), base::Bind(&ChannelDispatcherBase::OnWriteFailed,
                                           base::Unretained(this)));
   reader_.StartReading(channel_.get());
 
   event_handler_->OnChannelInitialized(this);
 }
 
 void ChannelDispatcherBase::OnWriteFailed(int error) {
-  event_handler_->OnChannelError(this, CHANNEL_CONNECTION_ERROR);
+  NotifyError(CHANNEL_CONNECTION_ERROR);
 }
 
 }  // namespace protocol
 }  // namespace remoting