Sync ui/events to chromium @ https://codereview.chromium.org/1210203002

ui/events/ozone/evdev/event_device_util.h

Index: ui/events/ozone/evdev/event_device_util.h
diff --git a/ui/events/ozone/evdev/event_device_util.h b/ui/events/ozone/evdev/event_device_util.h
new file mode 100644
index 0000000000000000000000000000000000000000..15000e350c97821b64aa69b3d9727c186eaa1470
--- /dev/null
+++ b/ui/events/ozone/evdev/event_device_util.h
@@ -0,0 +1,25 @@
+// 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.
+
+#ifndef UI_EVENTS_OZONE_EVDEV_EVENT_DEVICE_UTIL_H_
+#define UI_EVENTS_OZONE_EVDEV_EVENT_DEVICE_UTIL_H_
+
+#include <limits.h>
+
+namespace ui {
+
+#define EVDEV_LONG_BITS (CHAR_BIT * sizeof(long))
+#define EVDEV_BITS_TO_LONGS(x) (((x) + EVDEV_LONG_BITS - 1) / EVDEV_LONG_BITS)
+
+static inline bool EvdevBitIsSet(const unsigned long* data, int bit) {
+  return data[bit / EVDEV_LONG_BITS] & (1UL << (bit % EVDEV_LONG_BITS));
+}
+
+static inline void EvdevSetBit(unsigned long* data, int bit) {
+  data[bit / EVDEV_LONG_BITS] |= (1UL << (bit % EVDEV_LONG_BITS));
+}
+
+}  // namespace ui
+
+#endif  // UI_EVENTS_OZONE_EVDEV_EVENT_DEVICE_UTIL_H_