ozone: evdev: Add gamepad support

ui/events/ozone/evdev/touch_event_converter_evdev_unittest.cc

Index: ui/events/ozone/evdev/touch_event_converter_evdev_unittest.cc
diff --git a/ui/events/ozone/evdev/touch_event_converter_evdev_unittest.cc b/ui/events/ozone/evdev/touch_event_converter_evdev_unittest.cc
index 0180d230e716ef52fb2f944031e949660afc243d..9dd93f3438c2492182c8b47a8b7b330c0c2da1b9 100644
--- a/ui/events/ozone/evdev/touch_event_converter_evdev_unittest.cc
+++ b/ui/events/ozone/evdev/touch_event_converter_evdev_unittest.cc
@@ -153,6 +153,12 @@ class MockDeviceEventDispatcherEvdev : public DeviceEventDispatcherEvdev {
   void DispatchDeviceListsComplete() override {}
   void DispatchStylusStateChanged(StylusState stylus_state) override {}
 
+  // Dispatch Gamepad Event.
+  void DispatchGamepadEvent(const GamepadEvent& event) override {}
+
+  void DispatchGamepadDevicesUpdated(
+      const std::vector<InputDevice>& devices) override {}
+
  private:
   base::Callback<void(const GenericEventParams& params)> callback_;
 };