Introduce an interface for getSubIdForPhoneAccountHandle

Test: Treehugger
Bug: 143235201
Change-Id: Id137e2bedfc8f34768ce2edef0106835f4512dd1
Merged-In: Id137e2bedfc8f34768ce2edef0106835f4512dd1
(cherry picked from commit 6e6137d75a136072ac6daa2dd22892770c85f7f2)
1 file changed