[unified-consent] Fix sync page browser tests on dbg

This is a follow up to crrev.com/c/1422000.
Missing includes and dependencies are added.

TBR=dpapad@chromium.org

Bug: 919745
Change-Id: Ie88b4a286fbb59b4ed47887ddc6d8a594da50bfe
Reviewed-on: https://chromium-review.googlesource.com/c/1437208
Reviewed-by: Thomas Tangl <tangltom@chromium.org>
Commit-Queue: Thomas Tangl <tangltom@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#626360}(cherry picked from commit b2c2f23dd6bd3bf675382bf579a881687631d65d)
Reviewed-on: https://chromium-review.googlesource.com/c/1449679
Cr-Commit-Position: refs/branch-heads/3683@{#116}
Cr-Branched-From: e51029943e0a38dd794b73caaf6373d5496ae783-refs/heads/master@{#625896}
2 files changed