[automerger skipped] Add new DialogFragment and Controller for capability discovery opt-in am: f469cac10a am: da1335a9f4 -s ours am: 5ef4a92dd0 -s ours
am skip reason: Change-Id I70821964bc618c3c389c9039cd7f5028e34c7ebb with SHA-1 66c709844a is in history
Change-Id: I5ba07f1336bd4d4c5c9af6af38df350752667f55
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