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 am: 174579d6ef am: a3a674ea10
am: ff716c73ea  -s ours

Change-Id: I50b3147d6d31c1b8fec7ae4601f72ab9ce71327b