tree fe5922e67c5934d2c58256954dad1229c9c13716
parent b64933a5021ee9666388b781b542f11ef7665673
author Jeff Sharkey <jsharkey@android.com> 1510001639 -0700
committer Jeff Sharkey <jsharkey@android.com> 1510073832 -0700

Abort long-running benchmarks, report progress.

A typical storage device finishes the benchmark in under 10 seconds,
but some extremely slow devices can take minutes, resulting in a
confusing UX that looks like we've frozen.  Even worse, we keep
churning through all that I/O even though we know the device will
blow past our user-warning threshold.

So periodically check if we've timed out, and also use that to report
progress up into the Settings UI.

Test: manual
Bug: 62201209, 65639764, 67055204
Change-Id: I321397bcff230976f034cede0947d4a5a1f3e8a7