Merge "Implement SessionHandle.hashCode()" am: 033681de6b am: 1042b48447 am: c2870a248a

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1564877

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I6ad9a365e5cca1015c5f625f58bb1bd1d78815ee