Chrome Version:70.0.3538.102 (Official Build) 4bbeebac88fdc09c97265e47c205868bbd190497-refs/branch-heads/3538@{#1077}(32/64 bit)

OS: Win-10 Touch

Steps to reproduce:
1. Launch chrome, navigate to chrome://flags, click on 'Reset all to default' and relaunch browser.
2. Open NTP ,click on 'Gear' icon and again click on 'chrome backgrounds' option.
3. Tap/touch on one of Tile and again tap/touch 2-3 times on inner tile
4. Observe.

Actual  : Background picture tiles does not get selected/deselected on tap/touch.
Expected: Background picture tiles should get selected/deselected on tap/touch.

This is Regression issue seen in M-70, and will soon update other info.
Good Build: 70.0.3537.0
Bad Build: 70.0.3538.0

Change-Log URL:
https://chromium.googlesource.com/chromium/src/+log/70.0.3537.0..70.0.3538.0?pretty=fuller&n=10000

Suspecting: r587382 ?

@sweilun: Could you please check whether this is caused with respect to your change, if not please help us in assigning it to the right owner.

Note:
1.Unable to provide 'per-revision' bisect as it shows "We don't have enough builds to bisect" error message.
2.Tried on other machines but still getting the same error again.
3.Unable to perform 'chromium bisect' script as issue is not reproducible on chromium builds, hence providing suspect through Manual change-log.
4.Above issue is seen only on remote NTP not on local NTP.
5.Above issue is Touch specific and not seen on Win(7,8,8.1,10),Mac(10.13.1 , 10.13.6 , 10.14.2)  and Linux(14.04 LTS)
Thank You
 

Deleted: Actual Result.mp4 864 KB

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Deleted: Expected Result.mp4 1.1 MB

	Expected Result.mp4 1.1 MB View Download