tree fc71e27e0ddf6be1f672b69524b7ee978fd9d29c
parent 74b3c8f3850c2e4a7b17e9821ad78b59e6f8e047
author Mathieu Chartier <mathieuc@google.com> 1461005009 -0700
committer Mathieu Chartier <mathieuc@google.com> 1461018593 -0700

Prevent holding stale Thread pointers

It is only really safe to hold non-self Thread* if you hold the
thread list lock. Changed a few places to use thread ids instead
of Thread.

Bug: 28223501

(cherry picked from commit 81c170fede9af9174aba71428334ac8f366a4b4f)

Change-Id: I15e50b699303a5c3739e4d19c153dd306e2ee504