[s13n] Eliminate //ios/chrome's autocomplete_history_manager_factory.cc's include of GCMSFactor

Remove unused header gaia_cookie_manager_service_factory.h from
autocomplete_history_manager_factory.cc

Bug: 931253
Change-Id: I1569a881edae843d4535e4bfe96e97241eee907e
Reviewed-on: https://chromium-review.googlesource.com/c/1469742
Reviewed-by: Olivier Robin <olivierrobin@chromium.org>
Commit-Queue: Miyoung Shin <myid.shin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#631608}
1 file changed