Using the per-revision bisect providing the bisect results,
Good build: 56.0.2902.0 (Revision: 427892).
Bad build: 56.0.2906.0 (Revision: 428890).

You are probably looking for a change made after 428812 (known good), but no later than 428813 (first known bad).
CHANGELOG URL:
  https://chromium.googlesource.com/chromium/src/+log/85f388c9b9ac82da747bbefe195724916cdb7900..2f98b6bb35e391918dd1e57ad42b289fc6940bdf

@xidachen -- Could you please look into the issue, pardon me if it has nothing to do with your changes and if possible please assign it to concern owner.
Adding RB Label as this is a recent Regression. Please remove if not required.

Thank You.

rdevlin@
The suspected CL is a reland of your original CL here: https://codereview.chromium.org/2452773002/

Could you please have a look.

This actually doesn't look wrong to me.

If you look closely at both videos, in the "actual" one, the user clicks the site info bubble while the page is pointing to an extension page.  In the "expected" one, the extension page url flashes but the user doesn't click until redirected to docs.google.com (and then ultimately to the sign in page).  I think this is WAI, but +felt@ and creis@ for their opinions.

Comment 3: I agree.  In both videos, the bubble displays information about the URL that was present at the time of the click.  That's how it should behave.

However, I do wonder if we should be dismissing the bubble if a new commit happens while it's showing.  That would avoid showing stale info that no longer corresponds to the current page.

felt@ is OOO.  emilyschechter@, do you have thoughts about that or know who to loop in?

Adding +meacer and +lgarron to triage. Dismissing or updating the bubble sounds reasonable, I think.

I agree with #3 and #4 that the initial contents of the bubble look correct in both the actual and expected cases. Current stable version also exhibits same behavior so there doesn't seem to be a regression here.

Filed bug 670787 to hide or update the bubble on a new commit and wontfixing this.  (msrchandra, rkote: Let us know if we are missing anything)