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

chrome/service/service_process.cc

Index: chrome/service/service_process.cc
diff --git a/chrome/service/service_process.cc b/chrome/service/service_process.cc
index be3e48ea679f9830e67a775344e5ca4a7050c55c..ff97081b611963eda5aa3fd65d4ee0a8500c2600 100644
--- a/chrome/service/service_process.cc
+++ b/chrome/service/service_process.cc
@@ -26,6 +26,10 @@
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/base/ui_base_switches.h"
 
+#if defined(TOOLKIT_USES_GTK)
+#include "ui/gfx/gtk_util.h"
+#endif
+
 #if defined(ENABLE_REMOTING)
 #include "chrome/service/remoting/chromoting_host_manager.h"
 #endif  // defined(ENABLED_REMOTING)
@@ -74,8 +78,11 @@ ServiceProcess::ServiceProcess()
   g_service_process = this;
 }
 
-bool ServiceProcess::Initialize(MessageLoop* message_loop,
+bool ServiceProcess::Initialize(MessageLoopForUI* message_loop,
                                 const CommandLine& command_line) {
+#if defined(TOOLKIT_USES_GTK)
+  gfx::GtkInitFromCommandLine(command_line);
+#endif
   main_message_loop_ = message_loop;
   network_change_notifier_.reset(net::NetworkChangeNotifier::Create());
   base::Thread::Options options;