commit 74889310a3203390093db0c6ef2268f5946f6b01
author Riddle Hsu <riddlehsu@google.com> Thu Dec 23 18:05:32 2021 -0600
committer Riddle Hsu <riddlehsu@google.com> Tue Dec 28 15:06:56 2021 +0800
tree 4c83168c7b5d6b835cc05e7f12e195933b1d25af
parent f774fb2f758803ee62d3caa89ec6ab87e985b36c

Add some traces for shell transition

This includes 3 traces:
1. Create sync group ~ finish
   The duration from transition creation to participants are ready.
2. onTransactionReady
   The duration of preparing TransitionInfo, start/finishTransaction.
3. Tell shell onTransitionReady ~ finishTransition
   The duration of transition animation.

Bug: 211846272
Test: adb shell setprop persist.debug.shell_transit 1; reboot
      Launch an app with "record_android_trace wm".

Change-Id: I0c7cdb98d5c3250c50caf25e147bfe21c1366514