Note it only broke on device, on workstation (running Chrome for Chrome OS on Linux) it seems work fine. 

And actually it was more broken than I thought: not only the window resizer is broken, but most of the time the device doesn't respond the mouse/touch event.

Just took a screenshot. See the attached screenshot.

Deleted: Screenshot 2018-03-01 at 16.21.47.png 2.0 MB

	Screenshot 2018-03-01 at 16.21.47.png 2.0 MB View Download

Btw: It works fine in Chrome version 66.0.3357.0

I found that This issue and 818270 disappears when I disable the Play Store.

Re#5: Thanks! It also seems the case for me. When Playstore is enabled, this issue and  Issue 818270  can both be observed.
+ A few Arc folks and Arc constable

 Issue 818270  has been merged into this issue.

Hi, can test if reverting crrev.com/c/937820 fixes it?

Yep reverting fixed this. That CL was also causing  crbug.com/817957 .

Looks like fdoray@ is OOO until 3/12, so I'll revert this.

The culprit CL was landed in M66 while the revert CL was landed in M67.
Request merge for the revert CL https://chromium-review.googlesource.com/c/chromium/src/+/947802.

 Issue 818755  has been merged into this issue.

Oops. Sorry forgot to link the merge-to-M66 CL to this issue. 
The revert CL has been merged to M66, see https://chromium-review.googlesource.com/c/chromium/src/+/950140.

Remove RBD label. 

re adding the RBD in case the fix is not working 

Also, can you mark as fixed if nothing else pending?

Sure. 

Unable to repro this issue as per  Issue 818755  on build 66.0.3359.0/10452.0.0 dev-channel Reks which doesn't have the fix.Unable to repro the same on the latest available M-66, 66.0.3359.10/10452.1.0 dev-channel Reks so not sure whether this is indeed fixed.

Re mmanchala: I think these issues only happened on Arc++ enabled devices. 

Verified the fix on Chrome 66.0.3359.10/CrOS 10452.1.0 - Eve, Reks