Do image labels accessibility action on all subframes.

Bug: 905419
Change-Id: I3ef77b79942eba2e3e49775cd8195789f0554cf5
Reviewed-on: https://chromium-review.googlesource.com/c/1490446
Reviewed-by: Dominic Mazzoni <dmazzoni@chromium.org>
Commit-Queue: Katie Dektar <katie@chromium.org>
Cr-Commit-Position: refs/heads/master@{#636059}
1 file changed