GitLab

Add a test that tab-index key focus works correctly (the tab-indexable
elements are cycled through in order) when Quick View is displaying a
text file in its content area.

Tab past the content panel to skip over checking the focus on the content
webview.

Bug: 907380
Change-Id: Ia800bf7a04633376d7c355e0947d2fcaa9bf72f5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2000281
Commit-Queue: Noel Gordon <noel@chromium.org>
Reviewed-by: Noel Gordon <noel@chromium.org>
Cr-Commit-Position: refs/heads/master@{#731868}