commit 56a2ba0b0009b6a8db7c385489e5fef4c0d32d0a
author Carmen Jackson <carmenjackson@google.com> Fri Apr 28 10:34:50 2017 -0700
committer Carmen Jackson <carmenjackson@google.com> Fri Apr 28 12:09:12 2017 -0700
tree bc69b149da66e6a6bfae945e7fe27cc1a8c7f12d
parent 03d95980a102c1b3e3dca3d45f0c4a6bb08ef102

Set the atrace clock to boot when possible and mono otherwise.

Bug: 32379831
Test: Inspected the trace_clock while running atrace, without including the .rc file change:
$ adb shell
marlin:/ # cat /d/tracing/trace_clock
[local] global counter uptime perf mono boot
marlin:/ # atrace --async_start freq
capturing trace...
marlin:/ # cat /d/tracing/trace_clock
local global counter uptime perf mono [boot]
marlin:/ # atrace --async_stop > /dev/null
marlin:/ # cat /d/tracing/trace_clock
local global counter uptime perf mono [boot]
marlin:/ # exit

Test: Inspected the trace_clock while running atrace, after the .rc file change:
$ adb shell
marlin:/ # cat /d/tracing/trace_clock
local global counter uptime perf mono [boot]
marlin:/ # atrace --async_start freq
capturing trace...
marlin:/ # cat /d/tracing/trace_clock
local global counter uptime perf mono [boot]

Change-Id: I9ec88df109b311b90c9d88fe3a70f9ce090b4d15