I didn't see anything obviously wrong in the tab drawing code, but it's possibly related to recent changes for touch UI, or tab throbber UI (CC pbos@ as an FYI).

Possible to bisect to a revision range?

I should be able to bisect. I'll update tomorrow AM.

Thanks, keep me in the loop. :)

Here's the bisect details. Description of the CL is "Removed hard-coded color from tab_media_capturing icon." :)

You are probably looking for a change made after 606944 (known good), but no later than 606945 (first known bad).

CHANGELOG URL: https://chromium.googlesource.com/chromium/src/+log/1ec65ecb8bdf7984d02663faed8e17c953ca2521..7762ab842197ba5815e974f3b125b43eed1c02b6

Amy, what's the expected behavior here? Should the indicator always be blue, or change its color depending on the theme?

IIUC after kylixrd@'s change this now uses the same color as the audio indicator.

Deleted: audio_indicators.png 11.5 KB

	audio_indicators.png 11.5 KB View Download

The tab mirroring indicator icon is blue again with 73.0.3665.0. Note that the audio indicator is still gray.

This is the same issue as 915609. Another CL is in the works to fix the audio indicator (https://crrev.com/c/1398286)