Lower minimum GCM heartbeat interval to 30 seconds.
There are some use cases for cast where our servers want to be
able to tell a device's online/offline status more accurately.
Lowering the minimum heartbeat interval from 2 minutes to 30 seconds
will help provide better resolution.
Bug: internal b/63776413
Change-Id: Iaa8193aef2f34ffc991f252193a82c4288ca24fa
Reviewed-on: https://chromium-review.googlesource.com/719415
Commit-Queue: Eric Sum <esum@chromium.org>
Reviewed-by: Peter Beverloo <peter@chromium.org>
Reviewed-by: Nicolas Zea <zea@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#514077}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: 87d005235b444171c567082407a0ac1f2a51e8182 files changed
