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..419f931af17182ac79f6a00313ea19a223d7ec95 100644
--- a/ui/events/ozone/evdev/touch_event_converter_evdev_unittest.cc
+++ b/ui/events/ozone/evdev/touch_event_converter_evdev_unittest.cc
@@ -119,6 +119,7 @@ class MockDeviceEventDispatcherEvdev : public DeviceEventDispatcherEvdev {
   ~MockDeviceEventDispatcherEvdev() override {}
 
   // DeviceEventDispatcherEvdev:
+  void DispatchGamepadEvent(const GamepadEventParams& params) override {}
   void DispatchKeyEvent(const KeyEventParams& params) override {}
   void DispatchMouseMoveEvent(const MouseMoveEventParams& params) override {
     GenericEventParams generic;
@@ -142,6 +143,8 @@ class MockDeviceEventDispatcherEvdev : public DeviceEventDispatcherEvdev {
     callback_.Run(generic);
   }
 
+  void DispatchGamepadDevicesUpdated(
+      const std::vector<InputDevice>& devices) override {}
   void DispatchKeyboardDevicesUpdated(
       const std::vector<InputDevice>& devices) override {}
   void DispatchTouchscreenDevicesUpdated(