Bookmark icon is not properly aligned with URL Bar

[srirambv]

cc: @jkup @bradleyrichter

[jkup]

Is this on master? And on Linux? I can't repro on my mac

[srirambv]

This is on the RC1 build and Ubuntu

[bbondy]

moving to 0.12.10

[bbondy]

Would love a fix and will put back in the milestone it's done in, but want to avoid more pixel bumping.

[bsclifton]

@jkup this might be a good use-case for demo-ing a rev 1 of a "browser button" or similar type of Aphrodite control. Something simple that centers an SVG in the control.

Ultimately, this control could also be used for stop/reload and back/forward buttons (but without borders)

[luixxiul]

I think I found a solution which depends on 214ce2d of #5737. I'm working on it.

[luixxiul]

Test plan: #5739 (comment)

Make sure #5739 has #5967 as a follow-up to remove the hacks for the URL bar on Windows.