Run event executor on the ui thread to remove the need to explicitly XFlush() the XTest calls.

remoting/host/simple_host_process.cc

Index: remoting/host/simple_host_process.cc
diff --git a/remoting/host/simple_host_process.cc b/remoting/host/simple_host_process.cc
index 289da0f7a4f68f9e6225fd0e28fa84fef21990db..7f66cf9b164fa9f7a558e6860ac3ef09508b3656 100644
--- a/remoting/host/simple_host_process.cc
+++ b/remoting/host/simple_host_process.cc
@@ -78,7 +78,8 @@ int main(int argc, char** argv) {
   base::EnsureNSPRInit();
 
   // Allocate a chromoting context and starts it.
-  remoting::ChromotingHostContext context;
+  MessageLoop message_loop(MessageLoop::TYPE_UI);
+  remoting::ChromotingHostContext context(&message_loop);
   context.Start();
 
 
@@ -155,7 +156,6 @@ int main(int argc, char** argv) {
   }
 
   // Let the chromoting host run until the shutdown task is executed.
-  MessageLoop message_loop(MessageLoop::TYPE_UI);
   host->Start(NewRunnableFunction(&ShutdownTask, &message_loop));
   message_loop.Run();