Implement video frame acknowledgements in the chromoting protocol.

remoting/protocol/channel_dispatcher_base.cc

Index: remoting/protocol/channel_dispatcher_base.cc
diff --git a/remoting/protocol/channel_dispatcher_base.cc b/remoting/protocol/channel_dispatcher_base.cc
index ee90ee56dcbc7bc02756ebf80e919e90889d6cbd..e997bebe7cd9286f4d757f25eaf75aa96c9cbd25 100644
--- a/remoting/protocol/channel_dispatcher_base.cc
+++ b/remoting/protocol/channel_dispatcher_base.cc
@@ -29,7 +29,8 @@ 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;
@@ -39,7 +40,7 @@ void ChannelDispatcherBase::Init(Session* session,
       break;
 
     default:
-      LOG(FATAL) << "Unknown transport type: " << config.transport;
+      LOG(FATAL) << "Unknown transport type: " << channel_config_.transport;
   }
 
   event_handler_ = event_handler;
@@ -48,10 +49,14 @@ void ChannelDispatcherBase::Init(Session* session,
       &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;
   }
 
@@ -65,7 +70,7 @@ void ChannelDispatcherBase::OnChannelReady(
 }
 
 void ChannelDispatcherBase::OnWriteFailed(int error) {
-  event_handler_->OnChannelError(this, CHANNEL_CONNECTION_ERROR);
+  NotifyError(CHANNEL_CONNECTION_ERROR);
 }
 
 }  // namespace protocol