Throw SecurityException when secondary user attempts to access BlockedNumberProvider. am: 91df11043f am: a4a1528916
am: 8715560fdd

* commit '8715560fdda23a837c754d3dfa46a18536d0ea9a':

Change-Id: I2bbe7f3e95f7cb76faa22e15be2ac53b55af857e