ozone: evdev: Add gamepad support

ui/events/ozone/evdev/touch_event_converter_evdev_unittest.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/events/ozone/evdev/touch_event_converter_evdev.h"
 
 #include <errno.h>
 #include <linux/input.h>
 #include <stddef.h>
 #include <unistd.h>
@@ skipping 135 matching lines @@
       const std::vector<InputDevice>& devices) override {}
   void DispatchTouchscreenDevicesUpdated(
       const std::vector<TouchscreenDevice>& devices) override {}
   void DispatchMouseDevicesUpdated(
       const std::vector<InputDevice>& devices) override {}
   void DispatchTouchpadDevicesUpdated(
       const std::vector<InputDevice>& devices) override {}
   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_;
 };
 
 MockTouchEventConverterEvdev::MockTouchEventConverterEvdev(
     ScopedInputDevice fd,
     base::FilePath path,
     const EventDeviceInfo& devinfo,
     DeviceEventDispatcherEvdev* dispatcher)
     : TouchEventConverterEvdev(std::move(fd), path, 1, devinfo, dispatcher) {
@@ skipping 937 matching lines @@
   event = dispatched_touch_event(3);
   EXPECT_EQ(ET_TOUCH_RELEASED, event.type);
   EXPECT_EQ(8930, event.location.x());
   EXPECT_EQ(980, event.location.y());
   EXPECT_EQ(EventPointerType::POINTER_TYPE_PEN,
             event.pointer_details.pointer_type);
   EXPECT_EQ(0.f / 1024, event.pointer_details.force);
 }
 
 }  // namespace ui