Original change's description:
> [iOS] Update accessibility labels for NextIA toolbar
>
> Some of the buttons in the NextIA toolbar do not currently have any
> accessibility labels set. This CL updates those buttons to use the same
> labels as the legacy/existing toolbar.
>
> Fixed: 529361946
> Change-Id: Ifa6669bb39e8d8a98c43ceab63ccf6bcba7c0a5a
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/8025470
> Reviewed-by: Gauthier Ambard <gambard@chromium.org>
> Commit-Queue: Hira Mahmood <hiramahmood@google.com>
> Cr-Commit-Position: refs/heads/main@{#1654808}

(cherry picked from commit e7c740129acb46b9138b710d82be7dbae47791c8)

Bug: 529837960,529361946
Change-Id: Ifa6669bb39e8d8a98c43ceab63ccf6bcba7c0a5a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/8032046
Bot-Commit: rubber-stamper@appspot.gserviceaccount.com <rubber-stamper@appspot.gserviceaccount.com>
Auto-Submit: chrome-cherry-picker@chops-service-accounts.iam.gserviceaccount.com <chrome-cherry-picker@chops-service-accounts.iam.gserviceaccount.com>
Commit-Queue: rubber-stamper@appspot.gserviceaccount.com <rubber-stamper@appspot.gserviceaccount.com>
Cr-Commit-Position: refs/branch-heads/7922@{#77}
Cr-Branched-From: 059c884787b1bc15faa5afe5250f7d3a7e0ef64a-refs/heads/main@{#1654411}