ozone: evdev: Add gesture property provider

ui/events/ozone/evdev/event_factory_evdev.h

Index: ui/events/ozone/evdev/event_factory_evdev.h
diff --git a/ui/events/ozone/evdev/event_factory_evdev.h b/ui/events/ozone/evdev/event_factory_evdev.h
index 5ce5a9b3bb9bf45b23c23aea86fe8b643ce03d51..5c4c07d24f097564e3a05a53d922b74f4b8224c6 100644
--- a/ui/events/ozone/evdev/event_factory_evdev.h
+++ b/ui/events/ozone/evdev/event_factory_evdev.h
@@ -26,6 +26,10 @@ namespace ui {
 class CursorDelegateEvdev;
 class DeviceManager;
 
+#if defined(USE_EVDEV_GESTURES)
+class GesturePropertyProvider;
+#endif
+
 // Ozone events implementation for the Linux input subsystem ("evdev").
 class EVENTS_OZONE_EVDEV_EXPORT EventFactoryEvdev : public DeviceEventObserver,
                                                     public PlatformEventSource {
@@ -70,6 +74,11 @@ class EVENTS_OZONE_EVDEV_EXPORT EventFactoryEvdev : public DeviceEventObserver,
   // Cursor movement.
   CursorDelegateEvdev* cursor_;
 
+#if defined(USE_EVDEV_GESTURES)
+  // Gesture library property provider (used by touchpads/mice).
+  scoped_ptr<GesturePropertyProvider> gesture_prop_provider_;
+#endif
+
   // Dispatch callback for events.
   EventDispatchCallback dispatch_callback_;