[automerge] Log event for bouncer fully visible after dream swiped up. 2p:...

[automerge] Log event for bouncer fully visible after dream swiped up. 2p: fb9f2de7 2p: 11abcedb

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17629040

Bug: 213906448
Change-Id: Ie53f3d7abf2b9327ea2c40e12c6add5916c9104e