GitLab

Adds a new CGI param for Related Searches to Contextual Search
that contains experiment and processing information for offline
logs quality analysis. This param is used for both the Resolve
and Search requests.

BUG=1144916

Change-Id: Ibc8b4ced4831f8c867be2185ed174b7306b248cd
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2515225
Auto-Submit: Donn Denman <donnd@chromium.org>
Reviewed-by: Angela Yoeurng <yoangela@chromium.org>
Commit-Queue: Donn Denman <donnd@chromium.org>
Cr-Commit-Position: refs/heads/master@{#823712}