It is time.

ui/events/ozone/evdev/libgestures_glue/gesture_timer_provider.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_timer_provider.h"
-
-#include <gestures/gestures.h>
-
-#include "base/timer/timer.h"
-
-// libgestures requires that this be in the top level namespace.
-class GesturesTimer {
- public:
-  GesturesTimer() : callback_(NULL), callback_data_(NULL) {}
-  ~GesturesTimer() {}
-
-  void Set(stime_t delay, GesturesTimerCallback callback, void* callback_data) {
-    callback_ = callback;
-    callback_data_ = callback_data;
-    timer_.Start(FROM_HERE,
-                 base::TimeDelta::FromMicroseconds(
-                     delay * base::Time::kMicrosecondsPerSecond),
-                 this,
-                 &GesturesTimer::OnTimerExpired);
-  }
-
-  void Cancel() { timer_.Stop(); }
-
- private:
-  void OnTimerExpired() {
-    struct timespec ts;
-    DCHECK(!clock_gettime(CLOCK_MONOTONIC, &ts));
-    stime_t next_delay = callback_(StimeFromTimespec(&ts), callback_data_);
-    if (next_delay >= 0) {
-      timer_.Start(FROM_HERE,
-                   base::TimeDelta::FromMicroseconds(
-                       next_delay * base::Time::kMicrosecondsPerSecond),
-                   this,
-                   &GesturesTimer::OnTimerExpired);
-    }
-  }
-
-  GesturesTimerCallback callback_;
-  void* callback_data_;
-  base::OneShotTimer<GesturesTimer> timer_;
-};
-
-namespace ui {
-
-namespace {
-
-GesturesTimer* GesturesTimerCreate(void* data) { return new GesturesTimer; }
-
-void GesturesTimerSet(void* data,
-                      GesturesTimer* timer,
-                      stime_t delay,
-                      GesturesTimerCallback callback,
-                      void* callback_data) {
-  timer->Set(delay, callback, callback_data);
-}
-
-void GesturesTimerCancel(void* data, GesturesTimer* timer) { timer->Cancel(); }
-
-void GesturesTimerFree(void* data, GesturesTimer* timer) { delete timer; }
-
-}  // namespace
-
-const GesturesTimerProvider kGestureTimerProvider = {
-    GesturesTimerCreate, GesturesTimerSet, GesturesTimerCancel,
-    GesturesTimerFree};
-
-}  // namespace ui