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The --cr-actionable mixin wasn't too meaningful and only applied a
pointer cursor. We should use [actionable] in places where we can
and just manually add the pointer cursor to places where we can't.

Bug: 973674
Change-Id: Ie0e43f6e463276417701f1f172c9f91987b3a09c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1705016Reviewed-by: Demetrios Papadopoulos <dpapad@chromium.org>
Commit-Queue: John Lee <johntlee@chromium.org>
Cr-Commit-Position: refs/heads/master@{#678374}