Make OnDeviceEvent and OnDispatcherListChanged protected to allow overload.

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 74585fc6b0d874986440be563ba7d81eaa7ef295..71f94c492f924d75976f5dc3876c803f2d1c7278 100644
--- a/ui/events/ozone/evdev/event_factory_evdev.h
+++ b/ui/events/ozone/evdev/event_factory_evdev.h
@@ -42,6 +42,15 @@ class EVENTS_OZONE_EVDEV_EXPORT EventFactoryEvdev : public DeviceEventObserver,
   void WarpCursorTo(gfx::AcceleratedWidget widget,
                     const gfx::PointF& location);
 
+ protected:
+  // DeviceEventObserver overrides:
+  //
+  // Callback for device add (on UI thread).
+  virtual void OnDeviceEvent(const DeviceEvent& event) override;
+
+  // PlatformEventSource:
+  virtual void OnDispatcherListChanged() override;
+
  private:
   // Post a task to dispatch an event.
   void PostUiEvent(scoped_ptr<Event> event);
@@ -59,14 +68,6 @@ class EVENTS_OZONE_EVDEV_EXPORT EventFactoryEvdev : public DeviceEventObserver,
 
   int NextDeviceId();
 
-  // DeviceEventObserver overrides:
-  //
-  // Callback for device add (on UI thread).
-  virtual void OnDeviceEvent(const DeviceEvent& event) override;
-
-  // PlatformEventSource:
-  virtual void OnDispatcherListChanged() override;
-
   // Owned per-device event converters (by path).
   std::map<base::FilePath, EventConverterEvdev*> converters_;