Fix smooth_gesture_util to adjust the gesture record properly

tools/perf/measurements/smooth_gesture_util.py

 # 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.
 import copy
 
 from telemetry.web_perf import timeline_interaction_record as tir_module
 
 
 def GetAdjustedInteractionIfContainGesture(timeline, interaction_record):
   """ Returns a new interaction record if interaction_record contains geture
   whose time range that overlaps with interaction_record's range. If not,
   returns a clone of original interaction_record.
   The synthetic gesture controller inserts a trace marker to precisely
   demarcate when the gesture was running. We check for overlap, not inclusion,
   because gesture_actions can start/end slightly outside the telemetry markers
   on Windows. This problem is probably caused by a race condition between
   the browser and renderer process submitting the trace events for the
   markers.
   """
   # Only adjust the range for gestures.
   if not interaction_record.label.startswith('Gesture_'):
     return copy.copy(interaction_record)
   gesture_events = [
     ev for ev
-    in timeline.GetAllToplevelSlicesOfName(
-        'SyntheticGestureController::running')
-    if ev.start <= interaction_record.end and
+    in timeline.IterAllAsyncSlicesOfName('SyntheticGestureController::running')
+    if ev.parent_slice is None and
+    ev.start <= interaction_record.end and
     ev.end >= interaction_record.start]
   if len(gesture_events) == 0:
     return copy.copy(interaction_record)
   if len(gesture_events) > 1:
     raise Exception('More than one possible synthetic gesture marker found in '
                     'interaction_record %s.' % interaction_record.label)
-  return tir_module.TimelineInteractionRecord(interaction_record.label,
-                                              gesture_events[0].start,
-                                              gesture_events[0].end)
+  return tir_module.TimelineInteractionRecord(
+    interaction_record.label, gesture_events[0].start,
+    gesture_events[0].end, gesture_events[0],
+    interaction_record._flags)  # pylint: disable=W0212