[s13n] Convert GooglePasswordManagerNavigationThrottleTest to IdentityManager

This CL only migrates GooglePasswordManagerNavigationThrottleTest
production code away from SigninManager.

Bug: 920153
Change-Id: Ibd55b58baf4ec7384989fa4de23dbc636bd17996
Reviewed-on: https://chromium-review.googlesource.com/c/1414532
Reviewed-by: Colin Blundell <blundell@chromium.org>
Reviewed-by: Vasilii Sukhanov <vasilii@chromium.org>
Commit-Queue: Julie Jeongeun Kim <jkim@igalia.com>
Cr-Commit-Position: refs/heads/master@{#623223}
1 file changed