Keep the StreamBrokerDisconnectReason histograms a bit longer.

Bug: chromium:919650 chromium:919651
Change-Id: I15130a3f0e179532dc90fb7ae2ac8f142de1a641
Reviewed-on: https://chromium-review.googlesource.com/c/1412457
Reviewed-by: Steven Holte <holte@chromium.org>
Commit-Queue: Jonas Olsson <jonasolsson@chromium.org>
Cr-Commit-Position: refs/heads/master@{#623184}
1 file changed