screenshot of the circle not fully appearing for a recipient who is "away".

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here is the same hangout in canary vs stable, side by side. Sometimes the circle is not totally cut off but just a few pixels as it is here, but most of the time the afk/greyed out circle is cut off in Canary.

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hmm I get the same thing with critique with a greyed out box so maybe something to do with that style in general

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both have the opacity property set so maybe something to do with that. Adding a few random people based on a random walk of opacity related CLs.

Tested the issue on Mac OS 10.12.2 using chrome M58 #58.0.2991.0 and issue is reproduced.

Using the per-revision bisect providing the bisect results,
Good build:58.0.2988.0 (revision : 445272)
Bad build: 58.0.2989.0 (revision : 445281)

You are probably looking for a change made after 445275 (known good), but no later than 445276 (first known bad).

CHANGELOG URL:

The script might not always return single CL as suspect as some perf builds might get missing due to failure.

  https://chromium.googlesource.com/chromium/src/+log/209094f6afac678695e7061b0e02e3dc21eb7ebe..677c0342b556d3dd7a5387ffba13cc0079439ad7

Skia Suspect :

https://skia.googlesource.com/skia.git/+log/1517224346e9..17b5e5c591fc

From the above regression range , this issue looks similar to  issue 683799 .

Note :1. marking it as ReleaseBlock- Beta , as it is a M58 regression. 
      2. Issue is not seen on Linux OS.

Thanks!

Cc'ing abdulsyed@ as M-58 TPM.

+Robert and Mike

Given the behavior and CL range this probably has the same root cause as  crbug.com/684829  (Mousing over divs with CSS transitions causes div background image to shift)