Merge "When a pinned file is a jar or apk, ask the runtime for other files."...

Merge "When a pinned file is a jar or apk, ask the runtime for other files." am: 03faaa58 am: c17f1064 am: 2e17b07d

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1646526

Change-Id: I1fd76cc9165b20dccecea76f747f3a20a3c003bb