Merge "Initialize max history buffer size when reading checkin file" into udc-dev am: 7fb87efd

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/21533912



Change-Id: I5edbae0c36599f7fd7237f6c99c89668462349a3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>