WIP: Expand and de-noise touch_pinch_zoom_cases.

tools/telemetry/telemetry/web_perf/smooth_gesture_util.py

Index: tools/telemetry/telemetry/web_perf/smooth_gesture_util.py
diff --git a/tools/telemetry/telemetry/web_perf/smooth_gesture_util.py b/tools/telemetry/telemetry/web_perf/smooth_gesture_util.py
index 8fe32573844c4e2e853c95d99b489d948abe5655..ea7d096df7cfffe4b6852236209a1aaa3a3b85db 100644
--- a/tools/telemetry/telemetry/web_perf/smooth_gesture_util.py
+++ b/tools/telemetry/telemetry/web_perf/smooth_gesture_util.py
@@ -28,10 +28,10 @@ def GetAdjustedInteractionIfContainGesture(timeline, interaction_record):
     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)
+  #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, gesture_events[0],
+    gesture_events[-1].end, gesture_events[0],
     interaction_record._flags)  # pylint: disable=W0212