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If you request a permission, then open another tab and request the same
permission, the chip appears without animating and the origin in the
omnibox disappears. This patch fixes this behaviour.

If request was already shown to user and user switches back to a tab
with a pending request, request stays collaped and won't reanimate.

Bug: 1019129
Change-Id: I9d46f1fbe479de584bcce988d7a20deb4e7e76a4
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2445774Reviewed-by: Balazs Engedy <engedy@chromium.org>
Reviewed-by: Bret Sepulveda <bsep@chromium.org>
Commit-Queue: Olesia Marukhno <olesiamarukhno@google.com>
Cr-Commit-Position: refs/heads/master@{#814635}