ozone: evdev: Add gamepad support

services/ui/public/cpp/input_devices/input_device_client.h

Index: services/ui/public/cpp/input_devices/input_device_client.h
diff --git a/services/ui/public/cpp/input_devices/input_device_client.h b/services/ui/public/cpp/input_devices/input_device_client.h
index 0f7f2c977b23f83047b62203fe62d3276e620788..9d077cff6fb97d2cb29cfe7a038489d53ec62734 100644
--- a/services/ui/public/cpp/input_devices/input_device_client.h
+++ b/services/ui/public/cpp/input_devices/input_device_client.h
@@ -39,6 +39,7 @@ class InputDeviceClient : public mojom::InputDeviceObserverMojo,
       const override;
   const std::vector<ui::InputDevice>& GetMouseDevices() const override;
   const std::vector<ui::InputDevice>& GetTouchpadDevices() const override;
+  const std::vector<ui::InputDevice>& GetGamepadDevices() const override;
 
   bool AreDeviceListsComplete() const override;
   bool AreTouchscreensEnabled() const override;
@@ -61,11 +62,14 @@ class InputDeviceClient : public mojom::InputDeviceObserverMojo,
       const std::vector<ui::InputDevice>& devices) override;
   void OnTouchpadDeviceConfigurationChanged(
       const std::vector<ui::InputDevice>& devices) override;
+  void OnGamepadDeviceConfigurationChanged(
+      const std::vector<ui::InputDevice>& devices) override;
   void OnDeviceListsComplete(
       const std::vector<ui::InputDevice>& keyboard_devices,
       const std::vector<ui::TouchscreenDevice>& touchscreen_devices,
       const std::vector<ui::InputDevice>& mouse_devices,
-      const std::vector<ui::InputDevice>& touchpad_devices) override;
+      const std::vector<ui::InputDevice>& touchpad_devices,
+      const std::vector<ui::InputDevice>& gamepad_devices) override;
   void OnStylusStateChanged(StylusState state) override;
 
  private:
@@ -79,6 +83,7 @@ class InputDeviceClient : public mojom::InputDeviceObserverMojo,
   std::vector<ui::TouchscreenDevice> touchscreen_devices_;
   std::vector<ui::InputDevice> mouse_devices_;
   std::vector<ui::InputDevice> touchpad_devices_;
+  std::vector<ui::InputDevice> gamepad_devices_;
   bool device_lists_complete_ = false;
 
   // List of in-process observers.