Reland of "DevTools: Make Settings Blackboxing Pane Accessible"
Reland of "DevTools: Make Settings Blackboxing Pane Accessible"


Reland of "DevTools: Make Settings Blackboxing Pane Accessible"

Initially, the change https://chromium-review.googlesource.com/c/chromium/src/+/1605506 was reverted in order to
revert "DevTools: Make Preferences Settings Pane Accessible" crrev.com/c/1618170.
Both of the original changes had added axe tests for it in basic-a11y-test.js which was timing out in Ubuntu build 14.04.
The change here only makes blackboxing pane accessible and doesn't add test in basic-a11y-test.js.
Test for it will be added in a seperate PR.
Original change: https://chromium-review.googlesource.com/c/chromium/src/+/1605506
Reverted change: https://chromium-review.googlesource.com/c/chromium/src/+/1618026

Change-Id: I51f80cfec544118d6173ca8fafd1b3eff50de6b1
Bug: 963183
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1636728
Commit-Queue: Chandani Shrestha <52538cdd559ab5325fe6b80437501fc583a9e806@microsoft.com>
Reviewed-by: Erik Luo <26192f5e05d23e5ee959014fb911d780e566545b@chromium.org>
Cr-Original-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#665690}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: ce03dbf99ae472bba2785a8737c2ac5f792a6eff

ChromeDevTools/devtools-frontend,ChromeDevTools/devtools-frontend,ChromeDevTools/devtools-frontend,ChromeDevTools/devtools-frontend,ChromeDevTools/devtools-frontend,ChromeDevTools/devtools-frontend