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 am: 0d84702e

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

Change-Id: I21dd5b1c93d32d32bba234f31d4d7b372b194cab