Further notes:

1. The UX team requests that the accessibility text for voiceover for this scenario be "The Washington Post (WP Company LLC) [US]. View site information" while the tooltip just remains "View site information"

2. On Views, when the window is narrow and the omnibox label is ellipsized in the middle, a tooltip override is in place such that hovering over the label on the security chip shows the full site information in the tooltip. If Mac doesn't already get that behavior for free then this should probably be treated as a special case and the tooltip /should/ show the full unellipsized text.

I'll try to get to this in the next two weeks.

https://chromium-review.googlesource.com/c/602528

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/1d7b37d1258fd3a24d07ef745aa37747a3732650

commit 1d7b37d1258fd3a24d07ef745aa37747a3732650
Author: Elly Fong-Jones <ellyjones@google.com>
Date: Fri Aug 04 20:04:42 2017

cocoa: add separate a11y label for security state decoration

Right now, the tooltip for this repeats the text of the decoration. The text
only really should be repeated in the a11y label, so this change gives
SecurityStateBubbleDecoration a separate a11y label and makes the tooltip just
the "view site information" text.

Bug:  702406 
Change-Id: Iff75abd59b558c1c71a02fecb508629132a4e63e
Reviewed-on: https://chromium-review.googlesource.com/602528
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Elly Fong-Jones <ellyjones@chromium.org>
Cr-Commit-Position: refs/heads/master@{#492110}
[modify] https://crrev.com/1d7b37d1258fd3a24d07ef745aa37747a3732650/chrome/browser/ui/cocoa/location_bar/security_state_bubble_decoration.h
[modify] https://crrev.com/1d7b37d1258fd3a24d07ef745aa37747a3732650/chrome/browser/ui/cocoa/location_bar/security_state_bubble_decoration.mm

Tested this issue on Mac 10.12.6 using latest Dev#62.0.3178.0.

Steps followed:
--------------
1. Voice over is ON
2. Launch chrome
3. Navigate to WashingtonPost.com site
4. Hover over 'secure'

Observations:
------------
1. Tooltip displayed as "View site information" at the left of the Omnibox which is as intended (Comment#0)
2. Observed that voice over is reading only the popup messages but not the tooltips.

Please let us know if we miss anything from our end.
Thanks.

#8: I believe that is correct.

The NextAction date has arrived: 2017-08-18