AlertDialog:Using Api With Cancel

Build 2873 on feat-improved-styles
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Baseline History
Build 2873a6b3902
Current build. There are unaccepted changes, so build 2618 is still the baseline.
Build 26186e0635a current baseline
Accepted by Andrey Yamanov.
Build 2049a3ad716
Accepted by Andrey Yamanov.
Build 1925f05f3b7
Accepted by Andrey Yamanov.
Build 1671397e8a1
Accepted by Andrey Yamanov.
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