Change ui::Event::time_stamp from TimeDelta to TimeTicks

ui/events/ozone/evdev/touch_noise/single_position_touch_noise_filter.cc

 // Copyright 2015 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/touch_noise/single_position_touch_noise_filter.h"
 
 #include <inttypes.h>
 
 #include "base/logging.h"
 #include "base/metrics/histogram_macros.h"
@@ skipping 28 matching lines @@
 }  // namespace
 
 SinglePositionTouchNoiseFilter::SinglePositionTouchNoiseFilter()
     : tracked_touches_start_(0), tracked_touches_end_(0) {
   for (size_t i = 0; i < kNumTouchEvdevSlots; ++i)
     tracked_slots_[i] = kNumTrackedTouches;
 }
 
 void SinglePositionTouchNoiseFilter::Filter(
     const std::vector<InProgressTouchEvdev>& touches,
-    base::TimeDelta time,
+    base::TimeTicks time,
     std::bitset<kNumTouchEvdevSlots>* slots_with_noise) {
   // Forget old touches which will no longer be considered for overlap.
-  base::TimeDelta touch_cutoff =
+  base::TimeTicks touch_cutoff =
       time - base::TimeDelta::FromMilliseconds(kMaxDurationMs);
   for (size_t i = tracked_touches_start_; i != tracked_touches_end_;
        i = (i + 1) % kNumTrackedTouches) {
     if (!tracked_touches_[i].valid)
       continue;
     if (tracked_touches_[i].end < touch_cutoff)
       StopTrackingTouch(i);
   }
 
   for (const InProgressTouchEvdev& touch : touches) {
@@ skipping 72 matching lines @@
     while (!tracked_touches_[tracked_touches_start_].valid &&
            tracked_touches_start_ != tracked_touches_end_) {
       tracked_touches_start_ =
           (tracked_touches_start_ + 1) % kNumTrackedTouches;
     }
   }
 }
 
 void SinglePositionTouchNoiseFilter::TrackTouch(
     const InProgressTouchEvdev& touch,
-    base::TimeDelta time) {
+    base::TimeTicks time) {
   size_t index = tracked_touches_end_;
   tracked_touches_end_ = (tracked_touches_end_ + 1) % kNumTrackedTouches;
   // If we would reach the start touch index, we cannot track any more touches.
   if (tracked_touches_end_ == tracked_touches_start_) {
     tracked_touches_end_ = index;
     return;
   }
 
   tracked_touches_[index].valid = true;
   tracked_touches_[index].slot = touch.slot;
   tracked_touches_[index].x = touch.x;
   tracked_touches_[index].y = touch.y;
   tracked_touches_[index].begin = time;
   tracked_touches_[index].end = time;
   tracked_slots_[touch.slot] = index;
 }
 
 SinglePositionTouchNoiseFilter::SinglePositionTouchNoiseFilter::TrackedTouch::
     TrackedTouch()
     : valid(false), slot(0), x(0), y(0) {
 }
 
 SinglePositionTouchNoiseFilter::SinglePositionTouchNoiseFilter::TrackedTouch::
     ~TrackedTouch() {
 }
 
 }  // namespace ui