Avoid duplicated calling to isRestricted to improve performance

isRestricted() is called every time in Play and setVolume API.
Then it introduces some latency here, the perfromance can be bad
especially when the APIs called multiple times.

Initialize the permission check result in constructor to avoid
calling to isRestricted.

CRs-Fixed: 812386

Change-Id: I1ce81d1723a6b29adf4117ac0ccb7a98850ef2dd