GitLab

There was a retain cycle per bug 1004690.
The ContainerCoordinator had a strong pointer to the Mediator, which in
turn had a strong pointer to infobar_container_ios, which had a strong
pointer to its consumer (ContainerCoordinator).

This would only happen on non Messages, since on the legacy implementation
the consumer is the ContainerViewController. Still I think both consumers
should be weakly retained since the mediator(infobar_container_ios)
don't really own these objects.

Bug: 1004690
Change-Id: Ic5d30b444177e216ffe2f8cdce9b0cf7d012383c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1809744Reviewed-by: Chris Lu <thegreenfrog@chromium.org>
Commit-Queue: Sergio Collazos <sczs@chromium.org>
Cr-Commit-Position: refs/heads/master@{#697490}