x11: Move X event handling out of the message-pump.

ui/views/widget/desktop_aura/desktop_dispatcher_client.cc

Index: ui/views/widget/desktop_aura/desktop_dispatcher_client.cc
diff --git a/ui/views/widget/desktop_aura/desktop_dispatcher_client.cc b/ui/views/widget/desktop_aura/desktop_dispatcher_client.cc
index 6c01751f63a41ecdfe16ad60ae9909b9153c52b9..9962eaa0ec15bb7f00587a7db152710f16f6cc83 100644
--- a/ui/views/widget/desktop_aura/desktop_dispatcher_client.cc
+++ b/ui/views/widget/desktop_aura/desktop_dispatcher_client.cc
@@ -25,7 +25,12 @@ void DesktopDispatcherClient::RunWithDispatcher(
   base::MessageLoopForUI::ScopedNestableTaskAllower allow_nested(loop);
 
   base::Closure old_quit_closure = quit_closure_;
+#if defined(OS_WIN)
   base::RunLoop run_loop(nested_dispatcher);
+#else
+  base::RunLoop run_loop;
+#endif
+
   quit_closure_ = run_loop.QuitClosure();
   base::WeakPtr<DesktopDispatcherClient> alive(weak_ptr_factory_.GetWeakPtr());
   run_loop.Run();