Fix out of order key events in Chrome on Linux.

ui/events/platform/x11/x11_event_source.h

Index: ui/events/platform/x11/x11_event_source.h
diff --git a/ui/events/platform/x11/x11_event_source.h b/ui/events/platform/x11/x11_event_source.h
index c878e172440046f6c2dfdee41ab502441c509cbe..abfd5fa80c3f3857a0e17892ea03ae7785a60050 100644
--- a/ui/events/platform/x11/x11_event_source.h
+++ b/ui/events/platform/x11/x11_event_source.h
@@ -51,6 +51,11 @@ class EVENTS_EXPORT X11EventSource {
   // available X events.
   void DispatchXEvents();
 
+  // Dispatches a given event immediately. This is to facilitate sequential
+  // interaction between the gtk event loop (used for IME) and the
+  // main X11 event loop.
+  void DispatchXEventNow(XEvent* event);
+
   // Blocks on the X11 event queue until we receive notification from the
   // xserver that |w| has been mapped; StructureNotifyMask events on |w| are
   // pulled out from the queue and dispatched out of order.