Report LatencyInfo through trace buffer

ui/events/event.cc

 // Copyright (c) 2012 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/event.h"
 
 #if defined(USE_X11)
 #include <X11/Xlib.h>
 #endif
 
@@ skipping 223 matching lines @@
 void Event::InitWithNativeEvent(const base::NativeEvent& native_event) {
   native_event_ = native_event;
 }
 
 void Event::InitLatencyInfo() {
   latency_.AddLatencyNumberWithTimestamp(INPUT_EVENT_LATENCY_ORIGINAL_COMPONENT,
                                          0,
                                          0,
                                          base::TimeTicks::FromInternalValue(
                                              time_stamp_.ToInternalValue()),
-                                         1);
+                                         1,
+                                         true);
   latency_.AddLatencyNumber(INPUT_EVENT_LATENCY_UI_COMPONENT, 0, 0);
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // CancelModeEvent
 
 CancelModeEvent::CancelModeEvent()
     : Event(ET_CANCEL_MODE, base::TimeDelta(), 0) {
   set_cancelable(false);
 }
@@ skipping 507 matching lines @@
 int GestureEvent::GetLowestTouchId() const {
   if (touch_ids_bitfield_ == 0)
     return -1;
   int i = -1;
   // Find the index of the least significant 1 bit
   while (!(1 << ++i & touch_ids_bitfield_));
   return i;
 }
 
 }  // namespace ui