ozone: evdev: Add gamepad support

ui/events/ozone/gamepad/gamepad_event.h

Index: ui/events/ozone/gamepad/gamepad_event.h
diff --git a/ui/events/ozone/gamepad/gamepad_event.h b/ui/events/ozone/gamepad/gamepad_event.h
new file mode 100644
index 0000000000000000000000000000000000000000..c0c53491de11bb6fc98fcaf0e2a39adb70dbf33b
--- /dev/null
+++ b/ui/events/ozone/gamepad/gamepad_event.h
@@ -0,0 +1,45 @@
+// Copyright 2017 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.
+
+#ifndef UI_EVENTS_OZONE_GAMEPAD_GAMEPAD_EVENT_H_
+#define UI_EVENTS_OZONE_GAMEPAD_GAMEPAD_EVENT_H_
+
+#include "base/time/time.h"
+#include "ui/events/ozone/gamepad/webgamepad_constants.h"
+
+namespace ui {
+
+class GamepadEvent {
+ public:
+  GamepadEvent(int device_id,
+               GamepadEventType type,
+               uint16_t code,
+               double value,
+               base::TimeTicks timestamp);
+
+  int device_id() { return device_id_; }
+
+  GamepadEventType type() { return type_; }
+
+  uint16_t code() { return code_; }
+
+  double value() { return value_; }
+
+  base::TimeTicks timestamp() { return timestamp_; }
+
+ private:
+  int device_id_;
+
+  GamepadEventType type_;
+
+  uint16_t code_;
+
+  double value_;
+
+  base::TimeTicks timestamp_;
+};
+
+}  // namespace ui
+
+#endif  // UI_EVENTS_OZONE_GAMEPAD_GAMEPAD_EVENT_H_