ozone: evdev: Add gamepad support

ui/events/BUILD.gn

 # 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.
 
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//testing/test.gni")
 import("//ui/base/ui_features.gni")
 import("//ui/ozone/ozone.gni")
 
@@ skipping 114 matching lines @@
     "events_export.h",
     "events_stub.cc",
     "gestures/gesture_recognizer_impl_mac.cc",
     "gestures/gesture_types.h",
     "keycodes/platform_key_map_win.cc",
     "keycodes/platform_key_map_win.h",
     "null_event_targeter.cc",
     "null_event_targeter.h",
     "scoped_target_handler.cc",
     "scoped_target_handler.h",
+    "webgamepad_constants.h",
     "win/events_win.cc",
     "win/system_event_state_lookup.cc",
     "win/system_event_state_lookup.h",
   ]
 
   defines = [ "EVENTS_IMPLEMENTATION" ]
 
   public_deps = [
     ":events_base",
     "//ui/latency",
@@ skipping 298 matching lines @@
 
     if (use_ozone) {
       sources += [
         "ozone/chromeos/cursor_controller_unittest.cc",
         "ozone/evdev/event_converter_evdev_impl_unittest.cc",
         "ozone/evdev/event_converter_test_util.cc",
         "ozone/evdev/event_converter_test_util.h",
         "ozone/evdev/event_device_info_unittest.cc",
         "ozone/evdev/event_device_test_util.cc",
         "ozone/evdev/event_device_test_util.h",
+        "ozone/evdev/gamepad_event_converter_evdev_unittest.cc",
         "ozone/evdev/input_injector_evdev_unittest.cc",
         "ozone/evdev/tablet_event_converter_evdev_unittest.cc",
         "ozone/evdev/touch_event_converter_evdev_unittest.cc",
         "ozone/evdev/touch_filter/false_touch_finder_unittest.cc",
       ]
 
       if (use_xkbcommon) {
         sources += [
           "ozone/layout/keyboard_layout_engine_unittest.cc",
           "ozone/layout/xkb/xkb_keyboard_layout_engine_unittest.cc",
@@ skipping 32 matching lines @@
   generate_jar_jni("motionevent_jni_headers") {
     jni_package = "ui"
     classes = [ "android/view/MotionEvent.class" ]
   }
 
   generate_jar_jni("keyevent_jni_headers") {
     jni_package = "ui"
     classes = [ "android/view/KeyEvent.class" ]
   }
 }