MD Settings: Fix ChromeVox side effect of constant flickering.

MD Settings: Fix ChromeVox side effect of constant flickering.

ChromeVox adds a pulsing div to the DOM that causes the body to flicker
indefinitely, because of scrollbars appearing and disappearing.

BUG=657701
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:closure_compilation

[dpapad, 2016-10-20 17:43:52]

Description was changed from

==========
MD Settings: Fix ChromeVox side effect of constant flickering.

ChromeVox adds a pulsing div to the DOM that causes the body to flicker
indefinitely, because of scrollbars appearing and disappearing.

BUG=657701
==========

to

==========
MD Settings: Fix ChromeVox side effect of constant flickering.

ChromeVox adds a pulsing div to the DOM that causes the body to flicker
indefinitely, because of scrollbars appearing and disappearing.

BUG=657701
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:closure_compilation
==========

[dpapad, 2016-10-20 17:44:45]

The CQ bit was checked by dpapad@chromium.org to run a CQ dry run

[dpapad, 2016-10-20 17:45:10]

dpapad@chromium.org changed reviewers:
+ michaelpg@chromium.org

[commit-bot: I haz the power, 2016-10-20 17:45:25]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[michaelpg, 2016-10-20 18:09:39]

non-visible overflow can have weird side effects, and it won't be clear in the
future why we added this (ie it's unrelated to our other scrolling stuff). So a
comment is in order. But I'm also wondering if the problem doesn't lie elsewhere
(see bug).

[commit-bot: I haz the power, 2016-10-20 19:17:09]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-10-20 19:17:10]

Dry run: This issue passed the CQ dry run.

[michaelpg, 2017-02-09 21:51:02]

Does this issue still occur with CVox Next?

[dpapad, 2017-02-09 23:31:59]

On 2017/02/09 21:51:02, michaelpg wrote:
> Does this issue still occur with CVox Next?

I have not tried with CVox Next. Will close this CL for now, and we can revive
if still relevant.

[dpapad, 2017-02-09 23:32:06]

Description was changed from

==========
MD Settings: Fix ChromeVox side effect of constant flickering.

ChromeVox adds a pulsing div to the DOM that causes the body to flicker
indefinitely, because of scrollbars appearing and disappearing.

BUG=657701
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:closure_compilation
==========

to

==========
MD Settings: Fix ChromeVox side effect of constant flickering.

ChromeVox adds a pulsing div to the DOM that causes the body to flicker
indefinitely, because of scrollbars appearing and disappearing.

BUG=657701
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:closure_compilation
==========