GitLab

Modified some content_unittest expectations to work with
BackForwardCache enabled.

Change-Id: Ia754e152a557a13acc25182791626d45e2e7913f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1880044Reviewed-by: Camille Lamy <clamy@chromium.org>
Commit-Queue: Arthur Hemery <ahemery@chromium.org>
Cr-Commit-Position: refs/heads/master@{#710737}