GitLab

Moves session token management from the SearchProvider to
TemplateURLService.

Bug: 10664653
Change-Id: I48be94dbed74b7a3ca4e8c45a0d81687c2a2dea0
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2519837Reviewed-by: Christian Dullweber <dullweber@chromium.org>
Reviewed-by: Justin Donnelly <jdonnelly@chromium.org>
Commit-Queue: manuk hovanesian <manukh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#825363}