Maybe we're insetting for the 2 DIP focus ring?

We have to be careful about both sizing and positioning (of other objects relative to these) if focus rings are outset from the nominal control bounds, since I think then the "real" control bounds have to include them.

Or maybe there's another cause here.  Trent investigated checkbox focus rings, so I think it makes sense for him to look at this too.

I have a fix for this in https://chromium-review.googlesource.com/c/chromium/src/+/607755 

(my Windows machine has been really unhappy lately, talking to gerrit in particular)

That CL uses the layout code that http-auth is using to get the textfield heights correct. So if http-auth looks right, I think this will be handled correctly 
(as for all other dialogs we switch over to using textfield_layout.h).

http://httpbin.org/basic-auth/user/passwd -> attached

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	Screen Shot 2017-09-07 at 9.40.53 am.png 32.5 KB View Download

http auth looks to be correct! thanks