[Chromoting] Initial plumbing for cursor shape.

remoting/protocol/client_control_dispatcher.cc

Index: remoting/protocol/client_control_dispatcher.cc
diff --git a/remoting/protocol/client_control_dispatcher.cc b/remoting/protocol/client_control_dispatcher.cc
index 7abf3b6b67d00ae537d71ee4defc043f3b2ae8b0..7363de44cb664638ed9d8854cb945445193a6f05 100644
--- a/remoting/protocol/client_control_dispatcher.cc
+++ b/remoting/protocol/client_control_dispatcher.cc
@@ -62,6 +62,8 @@ void ClientControlDispatcher::OnMessageReceived(
 
   if (message->has_clipboard_event()) {
     clipboard_stub_->InjectClipboardEvent(message->clipboard_event());
+  } else if (message->has_cursor_shape()) {
+    client_stub_->SetCursorShape(message->cursor_shape());
   } else {
     LOG(WARNING) << "Unknown control message received.";
   }