tree a999b2b48b300d628c2c1f777e5d4a552f36f726
parent 1a6c41fbad9c1c6725d189fdcf7dae2fe3f00b4d
author Nancy Chen <nancychen@google.com> 1412819260 -0700
committer Nancy Chen <nancychen@google.com> 1413234109 -0700

Add API method to extract subscription ID from phone account (1/3)

Since Telephony uses subscription ids and Telecom uses Phone Accounts,
there should be an easy way to interface between the two. Since the
value of the subscription id and "id" of the phone account should be the
same in the case of a SIM phone account, we just need to check that the
phone account in question is a SIM phone account and convert the string
to a long.
This lays in groundwork for the following bugs:

Bug: 17925501
Bug: 17917937
Change-Id: I926e969b365d9e9878436302117e8786ec5513b8