Defer transition ready when resizing starting window. am: 7d7e6f3b am: e0101a49 am: 33a31302

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22371667



Change-Id: Ic92274f44bb187f63d29e4a8144e767978bed94e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>