DO NOT MERGE: debuggerd: verify that traced threads belong to the right process. am: 0528829b73  -s ours am: b9b6ec3644 am: 5920345eeb am: cb4d905c96  -s ours
am: e467cced5c

Change-Id: Id5534fddb6ca8c237fbcfd310a6843f03c12a3d3