Merge "simpleperf: support --profile_from_launch option in app_profiler.py." am: 0e6b67e308 am: 04938917b5 am: f1fa8bd44f am: c676ddb96b
am: d4bc07e014

Change-Id: I4e33e08238b2ec9e5073f8c956a2b27b1926976b