Simplified MessageReader and MessageDecoder classes.

remoting/protocol/host_message_dispatcher.cc

Index: remoting/protocol/host_message_dispatcher.cc
diff --git a/remoting/protocol/host_message_dispatcher.cc b/remoting/protocol/host_message_dispatcher.cc
index b5571714d2ec23e2a3848e889505bb52a761d42f..2554c9b2d4d600a42c7a2a2a5c888efb2683bc67 100644
--- a/remoting/protocol/host_message_dispatcher.cc
+++ b/remoting/protocol/host_message_dispatcher.cc
@@ -33,16 +33,16 @@ void HostMessageDispatcher::Initialize(
     return;
   }
 
-  control_message_reader_.reset(new MessageReader());
-  event_message_reader_.reset(new MessageReader());
+  control_message_reader_.reset(new ProtobufMessageReader<ControlMessage>());
+  event_message_reader_.reset(new ProtobufMessageReader<EventMessage>());
   host_stub_ = host_stub;
   input_stub_ = input_stub;
 
   // Initialize the readers on the sockets provided by channels.
-  event_message_reader_->Init<EventMessage>(
+  event_message_reader_->Init(
       session->event_channel(),
       NewCallback(this, &HostMessageDispatcher::OnEventMessageReceived));
-  control_message_reader_->Init<ControlMessage>(
+  control_message_reader_->Init(
       session->control_channel(),
       NewCallback(this, &HostMessageDispatcher::OnControlMessageReceived));
 }