From partner, originally reported in crosbug.com/61988

I was able to reproduce this on M57 link using the repro steps provided:


Chrome OS Version  :  9142.0.0
Type of hardware   :  <unreleased device>

Please specify Area-* of the system to which this bug/feature applies (add
the label below).
Cr-OS-Kernel-{Touch Screen}
What steps will reproduce the problem?
1.Updated Rev6 image via recovery media,went to OOBE and boot into OS. 
2.Launched Files from Apps,long pressed blank area to created a new folder. 
3.Used one finger long pressed this new folder and shortcut menu would be popped up. 
4.Chose Delete option from shortcut menu. 
5.Used one finger to touch "DELETE" button form "Are you sure you want to delete "New Folder"?" dialog. 

What is the expected output?
Should be touch "DELETE" once and can delete files successfully.

What do you see instead?
Found it need touch "DELETE" button several times to delete files successfully.

How frequently does this problem reproduce? (Always, sometimes, hard to
reproduce?)
Always

What is the impact to the user, and is there a workaround? If so, what is
it?
User will consider the touch screen function is broken

Please provide any additional information below.
Can't duplicate this issue via touchpad or mouse.