Propagate a service_manager::Connector for nested workers

Bug: 829119
Change-Id: Iaaaaad2942103471b3601e6b3a27d2975f337a1f
Reviewed-on: https://chromium-review.googlesource.com/1079726
Reviewed-by: Hiroki Nakagawa <nhiroki@chromium.org>
Reviewed-by: Kinuko Yasuda <kinuko@chromium.org>
Commit-Queue: Nate Chapin <japhet@chromium.org>
Cr-Commit-Position: refs/heads/master@{#563303}
4 files changed