The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/1f3264821fdaae92332804fbe1143d8756c799ad

commit 1f3264821fdaae92332804fbe1143d8756c799ad
Author: David Tseng <dtseng@chromium.org>
Date: Tue Sep 25 19:02:05 2018

Do not call doDefault for action verb select

In Blink, select (default action verb) often equates with 'click'.

A page author can quite reasonably have a node with role menuitem and add a click listener. In this instances, Blink gives us default action verb select.

ChromeVox calls do default and triggers undesirable side effects.

Bug:  889018 
Test: manually on Gmail.
Change-Id: I774001aa355ecaa64dd45878f40828f63feecd1a
Reviewed-on: https://chromium-review.googlesource.com/1241843
Commit-Queue: David Tseng <dtseng@chromium.org>
Reviewed-by: Dominic Mazzoni <dmazzoni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#594036}
[modify] https://crrev.com/1f3264821fdaae92332804fbe1143d8756c799ad/chrome/browser/resources/chromeos/chromevox/cvox2/background/background.js

The bug is marked as P3 or Feature. It should not be merged as M70 is in beta. 
Please contact the approriate milestone owner if you have questions.
Owners: benmason@(Android), kariahda@(iOS), geohsu@(ChromeOS), abdulsyed@(Desktop)

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

Sorry. I filed this bug and didn't adjust the appropriate field. This issue has been widely reported by ChromeVox users and impacts usage of Gmail at a fundamental level. Navigating unintentionally triggers menu items to be activated resulting in navigation getting stuck. This change only impacts ChromeVox.

This bug requires manual review: M70 has already been promoted to the beta branch, so this requires manual review
Please contact the milestone owner if you have questions.
Owners: benmason@(Android), kariahda@(iOS), geohsu@(ChromeOS), abdulsyed@(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/+/130b0fd2e77039b715c7d51dc6edb97b0601093f

commit 130b0fd2e77039b715c7d51dc6edb97b0601093f
Author: David Tseng <dtseng@chromium.org>
Date: Fri Sep 28 00:19:08 2018

Merge to m70: Do not call doDefault for action verb select

In Blink, select (default action verb) often equates with 'click'.

A page author can quite reasonably have a node with role menuitem and add a click listener. In this instances, Blink gives us default action verb select.

ChromeVox calls do default and triggers undesirable side effects.

TBR=dtseng@chromium.org
(cherry picked from commit 1f3264821fdaae92332804fbe1143d8756c799ad)

Bug:  889018 
Test: manually on Gmail.
Change-Id: I774001aa355ecaa64dd45878f40828f63feecd1a
Reviewed-on: https://chromium-review.googlesource.com/1241843
Commit-Queue: David Tseng <dtseng@chromium.org>
Reviewed-by: Dominic Mazzoni <dmazzoni@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#594036}
Reviewed-on: https://chromium-review.googlesource.com/1250204
Reviewed-by: David Tseng <dtseng@chromium.org>
Cr-Commit-Position: refs/branch-heads/3538@{#722}
Cr-Branched-From: 79f7c91a2b2a2932cd447fa6f865cb6662fa8fa6-refs/heads/master@{#587811}
[modify] https://crrev.com/130b0fd2e77039b715c7d51dc6edb97b0601093f/chrome/browser/resources/chromeos/chromevox/cvox2/background/background.js

The following revision refers to this bug: 
https://chromium.googlesource.com/chromium/src.git/+/130b0fd2e77039b715c7d51dc6edb97b0601093f

Commit: 130b0fd2e77039b715c7d51dc6edb97b0601093f
Author: dtseng@chromium.org
Commiter: dtseng@chromium.org
Date: 2018-09-28 00:19:08 +0000 UTC

Merge to m70: Do not call doDefault for action verb select

In Blink, select (default action verb) often equates with 'click'.

A page author can quite reasonably have a node with role menuitem and add a click listener. In this instances, Blink gives us default action verb select.

ChromeVox calls do default and triggers undesirable side effects.

TBR=dtseng@chromium.org
(cherry picked from commit 1f3264821fdaae92332804fbe1143d8756c799ad)

Bug:  889018 
Test: manually on Gmail.
Change-Id: I774001aa355ecaa64dd45878f40828f63feecd1a
Reviewed-on: https://chromium-review.googlesource.com/1241843
Commit-Queue: David Tseng <dtseng@chromium.org>
Reviewed-by: Dominic Mazzoni <dmazzoni@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#594036}
Reviewed-on: https://chromium-review.googlesource.com/1250204
Reviewed-by: David Tseng <dtseng@chromium.org>
Cr-Commit-Position: refs/branch-heads/3538@{#722}
Cr-Branched-From: 79f7c91a2b2a2932cd447fa6f865cb6662fa8fa6-refs/heads/master@{#587811}