ozone: evdev: Pass mouse wheel presence to gestures

ui/events/ozone/evdev/libgestures_glue/gesture_interpreter_libevdev_cros.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/libgestures_glue/gesture_interpreter_libevdev_cros.h"
 
 #include <gestures/gestures.h>
 #include <libevdev/libevdev.h>
 #include <linux/input.h>
 
@@ skipping 45 matching lines @@
   hwprops.screen_x_dpi = 133;
   hwprops.screen_y_dpi = 133;
   hwprops.orientation_minimum = props->orientation_minimum;
   hwprops.orientation_maximum = props->orientation_maximum;
   hwprops.max_finger_cnt = Event_Get_Slot_Count(evdev);
   hwprops.max_touch_cnt = Event_Get_Touch_Count_Max(evdev);
   hwprops.supports_t5r2 = Event_Get_T5R2(evdev);
   hwprops.support_semi_mt = Event_Get_Semi_MT(evdev);
   /* buttonpad means a physical button under the touch surface */
   hwprops.is_button_pad = Event_Get_Button_Pad(evdev);
+  hwprops.has_wheel = EvdevBitIsSet(evdev->info.rel_bitmask, REL_WHEEL) ||
+                      EvdevBitIsSet(evdev->info.rel_bitmask, REL_HWHEEL);
+
   return hwprops;
 }
 
 // Callback from libgestures when a gesture is ready.
 void OnGestureReadyHelper(void* client_data, const Gesture* gesture) {
   GestureInterpreterLibevdevCros* interpreter =
       static_cast<GestureInterpreterLibevdevCros*>(client_data);
   interpreter->OnGestureReady(gesture);
 }
 
@@ skipping 404 matching lines @@
 
 void GestureInterpreterLibevdevCros::ReleaseMouseButtons(stime_t timestamp) {
   DispatchMouseButton(BTN_LEFT, false /* down */, timestamp);
   DispatchMouseButton(BTN_MIDDLE, false /* down */, timestamp);
   DispatchMouseButton(BTN_RIGHT, false /* down */, timestamp);
   DispatchMouseButton(BTN_BACK, false /* down */, timestamp);
   DispatchMouseButton(BTN_FORWARD, false /* down */, timestamp);
 }
 
 }  // namespace ui