Merge "Fix possible num format exception when logging bubble stack position"...

Merge "Fix possible num format exception when logging bubble stack position" into udc-dev am: 4c897660 am: 87f4a950 am: c573687b

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22973207



Change-Id: Ieba6c8c931d4e444f587e7bf898c4e76b317d2ad
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>