tree fc0974c0f3e0225d731fd4b3e1837a4a4bb2e9e5
parent 05e21950c937b66ca8a4d1ee6fe9dc7254b8eb03
author Riddle Hsu <riddlehsu@google.com> 1600782760 +0800
committer Riddle Hsu <riddlehsu@google.com> 1601398436 +0800

Add app start source info of apps launched from launcher

Bug: 166614700
Test: Enable statsd log: "adb shell cmd stats print-logs"
      adb logcat | grep statsd | grep "(48)"
      The line may contain 0x100000->1[I] 0x110000->10[I]
      that means 1=from launcher and 10=latency 10ms.
Change-Id: Iddaff7066b66e241ba58ec87129ddbe2c531dc7e