Merge "Extend getPssPid to report itemized memtrack values" am: ca115f206a

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1583743

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Ia9822d0eda68f02a5297a5e9d22cc9a6f0f1289c