Merge "Optimize stack trace reporting puller for speed." into rvc-dev am:...

Merge "Optimize stack trace reporting puller for speed." into rvc-dev am: 067595c4 am: b9ad7a60 am: 74bce529

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/11675584

Change-Id: Ie3f4564cbde8b114372b5763210703ef2bcd10cf