Input Delay: Exclude pointerCancel and pointerCausedUaAction

This CL resets the pending pointerdown information in
InteractiveDetector when a pointerCancel or pointerCausedUaAction are
detected because those indicate that scrolls have happened. This CL also
changes the UMA and UKM metrics affected by this change by adding a 2 at
the end of the histogram names.

Bug: 924278
Change-Id: I4b42e9478c74d9ba42b77170800b6267151c91e8
Commit-Queue: Nicolás Peña Moreno <>
Reviewed-by: Steve Kobes <>
Reviewed-by: Navid Zolghadr <>
Reviewed-by: Bryan McQuade <>
Reviewed-by: Alexei Svitkine <>
Cr-Commit-Position: refs/heads/master@{#625389}
11 files changed