Merge "Add XmlSerializerPerfTest" am: 270337f961 am: 906e606242

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/2259542

Change-Id: If066a1a0af8c68e2c4d5ff0c9f02d748ec81d141
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>