GitLab

This CL improves accessibility of cr-input by automatically generating
aria-label on <input>, taking a best guess based on cr-input's aria-label,
label, or placeholders.

Bug: 832177
Cq-Include-Trybots: luci.chromium.try:closure_compilation
Change-Id: I6847f16fa5ddca89691aca271ea077974ff5211e
Reviewed-on: https://chromium-review.googlesource.com/1097942
Commit-Queue: Scott Chen <scottchen@chromium.org>
Reviewed-by: Demetrios Papadopoulos <dpapad@chromium.org>
Reviewed-by: Luciano Pacheco <lucmult@chromium.org>
Cr-Commit-Position: refs/heads/master@{#567803}