Merge "Improve documentation on simulateDataStall" am: 3b4f0832bd am: b241ce07a9

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1669505

Change-Id: Ia0f2e417d06fac1695929e995b1e7c09b82a24da
tree: 2ea318734094bbff43e411d25183040047c829ce
  1. framework/
  2. service/
  3. OWNERS
  4. TEST_MAPPING