The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/1df038df6e19e70fd11342f9d5a4d9efbea098fc

commit 1df038df6e19e70fd11342f9d5a4d9efbea098fc
Author: Vasilii Sukhanov <vasilii@chromium.org>
Date: Fri Nov 03 09:03:14 2017

Align elements in the save password dialog.

The username field is now align with the pop-up button for the password.
The save button is right-aligned with the username field.

Bug:  774505 , 780825 
Change-Id: Iae200387cb25ddbc5a4b9b3d17dfb093b9bf5cfb
Reviewed-on: https://chromium-review.googlesource.com/751742
Commit-Queue: Vasilii Sukhanov <vasilii@chromium.org>
Reviewed-by: Maxim Kolosovskiy <kolos@chromium.org>
Cr-Commit-Position: refs/heads/master@{#513727}
[modify] https://crrev.com/1df038df6e19e70fd11342f9d5a4d9efbea098fc/chrome/browser/ui/cocoa/passwords/pending_password_view_controller.mm
[modify] https://crrev.com/1df038df6e19e70fd11342f9d5a4d9efbea098fc/chrome/browser/ui/cocoa/passwords/save_pending_password_view_controller.mm

Tested this issue on Mac 10.12.6 with chrome #64.0.3260.0 and observed there is no square box displayed around password field because of this i was unable to verify the alignment of username and password field

Attaching the screen-cast for reference.

vasilii@ Could you please look into it and let us know your observations.

Deleted: 780825.png 101 KB

	780825.png 101 KB View Download

There is no square box because there was just one password detected. Thus, it's not editable. If you'd like to see the pop-up button then you should load a form with multiple password fields (e.g. a password change form), type different values into them and open the bubble via the icon.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/d0aae0ed5a278741bbb0385893938114bff40ee8

commit d0aae0ed5a278741bbb0385893938114bff40ee8
Author: Vasilii Sukhanov <vasilii@chromium.org>
Date: Mon Nov 06 17:15:04 2017

Align elements in the save password dialog.

The username field is now align with the pop-up button for the password.
The save button is right-aligned with the username field.

TBR=vasilii@chromium.org

(cherry picked from commit 1df038df6e19e70fd11342f9d5a4d9efbea098fc)

Bug:  774505 , 780825 
Change-Id: Iae200387cb25ddbc5a4b9b3d17dfb093b9bf5cfb
Reviewed-on: https://chromium-review.googlesource.com/751742
Commit-Queue: Vasilii Sukhanov <vasilii@chromium.org>
Reviewed-by: Maxim Kolosovskiy <kolos@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#513727}
Reviewed-on: https://chromium-review.googlesource.com/754934
Reviewed-by: Vasilii Sukhanov <vasilii@chromium.org>
Cr-Commit-Position: refs/branch-heads/3239@{#386}
Cr-Branched-From: adb61db19020ed8ecee5e91b1a0ea4c924ae2988-refs/heads/master@{#508578}
[modify] https://crrev.com/d0aae0ed5a278741bbb0385893938114bff40ee8/chrome/browser/ui/cocoa/passwords/pending_password_view_controller.mm
[modify] https://crrev.com/d0aae0ed5a278741bbb0385893938114bff40ee8/chrome/browser/ui/cocoa/passwords/save_pending_password_view_controller.mm

Verified this issue on mac 10.12.6 with chrome #63.0.3239.39, #64.0.3260.0 and observed that fix is working as expected. Hence adding TE-Verified labels.

Attaching the screencast for reference. 

Deleted: 780825.png 101 KB

	780825.png 101 KB View Download