drat I totally missed that - thanks for reporting! The harmony dialog will need a fix for this too.

(turns out: tweaking dialog layouts behind a runtime flag is kinda tricky :/)

before, after, and a pixel diff (Harmony)

https://codereview.chromium.org/2686983002

Deleted: before.png 218 KB

	before.png 218 KB View Download

Deleted: after.png 217 KB

	after.png 217 KB View Download

Deleted: diff.png 210 KB

	diff.png 210 KB View Download

Here is Win/non-harmony before/after. Note the dialog gets slightly narrower, which is a closer match to the m56 version as well.

Deleted: before_win.png 373 KB

	before_win.png 373 KB View Download

Deleted: after_win.png 369 KB

	after_win.png 369 KB View Download

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/3b76fcf9516aed2d90a61ae035cfdf2b2a18e08c

commit 3b76fcf9516aed2d90a61ae035cfdf2b2a18e08c
Author: tapted <tapted@chromium.org>
Date: Thu Feb 09 06:17:10 2017

Ensure the line on the origin info bubble extends the full width of the bubble.

This regressed in r444474 which was necessary to adapt the bubble
margins to support Harmony layout (i.e. since margins are no longer a
compile-time constant).

The separator line, however, needs to ignore the margins completely. So
move the bubble margin into the classes doing layout above and below the
separator.

BUG= 689574 

Review-Url: https://codereview.chromium.org/2686983002
Cr-Commit-Position: refs/heads/master@{#449222}

[modify] https://crrev.com/3b76fcf9516aed2d90a61ae035cfdf2b2a18e08c/chrome/browser/ui/views/website_settings/website_settings_popup_view.cc
[modify] https://crrev.com/3b76fcf9516aed2d90a61ae035cfdf2b2a18e08c/chrome/browser/ui/views/website_settings/website_settings_popup_view.h

 Issue 657264  has been merged into this issue.

Verified fixed in Version 58.0.3010.0 canary, requesting merge of r449222 to m-57

Your change meets the bar and is auto-approved for M57. Please go ahead and merge the CL to branch 2987 manually. Please contact milestone owner if you have questions.
Owners: amineer@(clank), cmasso@(bling), ketakid@(cros), govind@(desktop)

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/39df7ec4a3cf18ffd93ac26ab1472d5031f4b9d5

commit 39df7ec4a3cf18ffd93ac26ab1472d5031f4b9d5
Author: Trent Apted <tapted@chromium.org>
Date: Sun Feb 12 22:52:20 2017

[merge-m57] Ensure the line on the origin info bubble extends the full width of the bubble.

This regressed in r444474 which was necessary to adapt the bubble
margins to support Harmony layout (i.e. since margins are no longer a
compile-time constant).

The separator line, however, needs to ignore the margins completely. So
move the bubble margin into the classes doing layout above and below the
separator.

BUG= 689574 

Review-Url: https://codereview.chromium.org/2686983002
Cr-Commit-Position: refs/heads/master@{#449222}
(cherry picked from commit 3b76fcf9516aed2d90a61ae035cfdf2b2a18e08c)

Review-Url: https://codereview.chromium.org/2692773002 .
Cr-Commit-Position: refs/branch-heads/2987@{#467}
Cr-Branched-From: ad51088c0e8776e8dcd963dbe752c4035ba6dab6-refs/heads/master@{#444943}

[modify] https://crrev.com/39df7ec4a3cf18ffd93ac26ab1472d5031f4b9d5/chrome/browser/ui/views/website_settings/website_settings_popup_view.cc
[modify] https://crrev.com/39df7ec4a3cf18ffd93ac26ab1472d5031f4b9d5/chrome/browser/ui/views/website_settings/website_settings_popup_view.h

Verified this issue on Ubuntu 14.04 and Windows-10 using chrome latest M57-57.0.2987.54. By clicking on secure lock icon from the omnibox observed the dialog gets narrower as expected. Hence adding TE-Verified label.

Deleted: 689574.png 87.4 KB

	689574.png 87.4 KB View Download