tree 162960ae40982fead469eaad6dd11e2d033f30b0
parent 205cfa1ce77c96dfc45680b94651238a70b6942d
author Tyler Gunn <tgunn@google.com> 1453845591 -0800
committer Tyler Gunn <tgunn@google.com> 1458264184 -0700

DO NOT MERGE Register OnHoldTone event

Send a connection event to Telecom which will cause it to play or stop
the on hold tone.
Also ensure that we only start/stop the hold tone for the connection it is
associated with.

BUG=25357778

Change-Id: Ib1aafbcea69ea24534ba2b9af175e524a1416446