Merge "Publish dream state to OverviewProxyService." into tm-qpr-dev am: 4a42f42d51

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/20965082

Change-Id: Ia8ec5409f1f659d6d08d6e52db9ea5ffd1e37e46
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>