[automerger skipped] Merge "Add comments in grouping APIs to clarify possible exceptions." am: 42adca41b9

am: 7aacd1081d -s ours
am skip reason: change_id I3671e366be7e8c3a75b5ee23b7cf88a33ecd3a4f with SHA1 e00887f612 is in history

Change-Id: Ib4f1629b1072cc4af736a1c15a8d5faac72f0ce8
This commit is contained in:
Xiangyu/Malcolm Chen
2019-04-15 17:39:27 -07:00
committed by android-build-merger

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