I am unable to reproduce this in 57.0.2969.0 (using --disable-extensions to prevent extension icons from getting in the way). I think we'll need more info to be able to reproduce it.

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Ahh. I still see the extra-left-padding in 57.0.2970.0 canary (64-bit) OSX 10.11.6 (15G1212) when I launch without any flags. With --disable-extensions it's even again (like in your screenshot #1).

The browser actions container adds some padding in toolbar.  When --disable-extensions is added, the browser actions container is always hidden.  We also have a "grippy" area for the browser actions container to allow resizing; this area is to the left of the browser actions container.

My guess is that what's happening is that with the browser actions container visible, we over-compensate by adding both the grippy rect and the normal toolbar padding.  We'd probably just need to adjust pinLocationBarToLeftOfBrowserActionsContainerAndAnimate in ToolbarController.

I'm guessing my fix for  Issue 634918  may have created this regression.

Back to triage (not sure if it's still an issue).

It is looking centered now in latest Canary Version 66.0.3330.0 (NonRetina Device). Please see the screenshot.

ainslie@ Can we close this issue?

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It looks more balanced to me (squint-test). But I'll defer to maxwalker@'s judgement.

Looks good to me and matches the specs on retina and regular screens in Canary Version 66.0.3344.0 (see attachment).

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Thanks for your feedback. Closing then as fixed for now.

And +Verified per comment 11.