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: 26e8f06c am: cbeb1c89

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

Change-Id: I6b5e4b8f52877d4d451d2c8204ee16ee8c88d400