Don't persist recently closed tabs when policy disables history save.

Bug: 869580
Change-Id: I0b45a9feca593d4443067ae92fc1004c549625f0
Reviewed-on: https://chromium-review.googlesource.com/c/1370490
Reviewed-by: Scott Violet <sky@chromium.org>
Reviewed-by: Nicolas Ouellet-Payeur <nicolaso@chromium.org>
Commit-Queue: Marc-André Decoste <mad@chromium.org>
Cr-Commit-Position: refs/heads/master@{#617162}
9 files changed