Make Interaction Media Features MQ dynamic on Linux.

ui/events/ozone/evdev/input_device_factory_evdev.cc

Index: ui/events/ozone/evdev/input_device_factory_evdev.cc
diff --git a/ui/events/ozone/evdev/input_device_factory_evdev.cc b/ui/events/ozone/evdev/input_device_factory_evdev.cc
index 331759109399468596073bf6fa8ea52f8811ee30..2dfe7e5c2a4429c22e5230be200a898031c94c53 100644
--- a/ui/events/ozone/evdev/input_device_factory_evdev.cc
+++ b/ui/events/ozone/evdev/input_device_factory_evdev.cc
@@ -331,7 +331,10 @@ void InputDeviceFactoryEvdev::ApplyInputDeviceSettings() {
 
     converter->SetTouchEventLoggingEnabled(
         input_device_settings_.touch_event_logging_enabled);
+
+    UpdateDirtyFlags(converter);

[spang, 2017/05/10 16:03:41]

Please update dirtiness conservatively - that's the purpose of tracking
dirtiness. If nothing changed, it's not dirty.

As-is, this will cause hotplug notifications to chrome for every device on the
system, every time the configuration changes.

   }
+  NotifyDevicesUpdated();
 }
 
 void InputDeviceFactoryEvdev::ApplyCapsLockLed() {