Refresh keyboard mapping when they're updated

ui/aura/desktop_host_linux.cc

Index: ui/aura/desktop_host_linux.cc
diff --git a/ui/aura/desktop_host_linux.cc b/ui/aura/desktop_host_linux.cc
index 6025de5a7e1bc84eb8ed114a8fabe0d5e7457be6..102761d3bf0b16bc5f61dfecdf6aa06a3202b4a0 100644
--- a/ui/aura/desktop_host_linux.cc
+++ b/ui/aura/desktop_host_linux.cc
@@ -467,6 +467,12 @@ base::MessagePumpDispatcher::DispatchStatus DesktopHostLinux::Dispatch(
       handled = true;
       break;
     }
+    case MappingNotify: {
+      if (xev->xmapping.request == MappingModifier ||
+          xev->xmapping.request == MappingKeyboard)
+        XRefreshKeyboardMapping(&xev->xmapping);
+      break;
+    }
     case MotionNotify: {
       // Discard all but the most recent motion event that targets the same
       // window with unchanged state.