ozone: evdev: Add libgestures bindings for touchpad & mouse support

ui/events/ozone/evdev/event_device_info.h

 // Copyright 2013 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_EVDEV_EVENT_DEVICE_INFO_H_
 #define UI_EVENTS_OZONE_EVDEV_EVENT_DEVICE_INFO_H_
 
 #include <limits.h>
 #include <linux/input.h>
 
@@ skipping 26 matching lines @@
   bool HasSwEvent(unsigned int code) const;
   bool HasLedEvent(unsigned int code) const;
 
   // Properties of absolute axes.
   int32 GetAbsMinimum(unsigned int code) const;
   int32 GetAbsMaximum(unsigned int code) const;
 
   // Check input device properties.
   bool HasProp(unsigned int code) const;
 
+  // Has absolute X & Y axes.
+  bool HasAbsXY() const;
+
+  // Has relativeX & Y axes.
+  bool HasRelXY() const;
+
+  // Determine whether absolute device X/Y coordinates are mapped onto the
+  // screen. This is the case for touchscreens and tablets but not touchpads.
+  bool IsMappedToScreen() const;
+
  private:
   unsigned long ev_bits_[EVDEV_BITS_TO_LONGS(EV_CNT)];
   unsigned long key_bits_[EVDEV_BITS_TO_LONGS(KEY_CNT)];
   unsigned long rel_bits_[EVDEV_BITS_TO_LONGS(REL_CNT)];
   unsigned long abs_bits_[EVDEV_BITS_TO_LONGS(ABS_CNT)];
   unsigned long msc_bits_[EVDEV_BITS_TO_LONGS(MSC_CNT)];
   unsigned long sw_bits_[EVDEV_BITS_TO_LONGS(SW_CNT)];
   unsigned long led_bits_[EVDEV_BITS_TO_LONGS(LED_CNT)];
   unsigned long prop_bits_[EVDEV_BITS_TO_LONGS(INPUT_PROP_CNT)];
 
   struct input_absinfo abs_info_[ABS_CNT];
 
   DISALLOW_COPY_AND_ASSIGN(EventDeviceInfo);
 };
 
 }  // namspace ui
 
 #endif  // UI_EVENTS_OZONE_EVDEV_EVENT_DEVICE_INFO_H_