Remove unwanted header from sync_session_durations_metrics_recorder.h

SyncSessionDurationsMetricsRecorder is already ported away from
GaiaCookieManager to use IdentityManager to monitor accounts in the
Gaia cookies. This CL removes the unwanted gaia_cookie_manager_service.h
header.

Bug: 931252
Change-Id: Id1fecaaab3c74e3d9b707124e675e5e5a18d1cba
Reviewed-on: https://chromium-review.googlesource.com/c/1467361
Reviewed-by: Antonio Gomes <tonikitoo@igalia.com>
Reviewed-by: Colin Blundell <blundell@chromium.org>
Commit-Queue: Abhijeet Kandalkar <abhijeet@igalia.com>
Cr-Commit-Position: refs/heads/master@{#631675}
1 file changed