The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/a72a319471c5a4c78f16022a48f3083876a31adc

commit a72a319471c5a4c78f16022a48f3083876a31adc
Author: Yuwei Huang <yuweih@chromium.org>
Date: Mon Aug 28 19:41:47 2017

[CRD iOS] Tweaking the cursor fling animation

This CL tweaks the cursor fling animation to improve touch accuracy:
* Reduce the animation effect by reducing the time constant.
* Reduce kMinTrackSpeed to make the animation stop smoothlier.
* Reduce kMinDisplacement to reduce the animation threshold. The point
  of the threshold is just to prevent unintended fling. Making the
  threshold too high will cause feeling of inconsistent UX.

Bug:  758394 
Change-Id: I5c2f607a27a98a24ec14b76f9f8060f131c5301f
Reviewed-on: https://chromium-review.googlesource.com/633258
Reviewed-by: Scott Nichols <nicholss@chromium.org>
Commit-Queue: Yuwei Huang <yuweih@chromium.org>
Cr-Commit-Position: refs/heads/master@{#497845}
[modify] https://crrev.com/a72a319471c5a4c78f16022a48f3083876a31adc/remoting/client/gesture_interpreter.cc
[modify] https://crrev.com/a72a319471c5a4c78f16022a48f3083876a31adc/remoting/client/ui/fling_tracker.cc