Relax check for message loop in SequencedWorkerPool
Assert that the constructor message loop is non-NULL only when
the SequencedWorkerPool is about to be destroyed.
Revert now-unneccessary test changes that adds MessagePools for
SequenedWorkerPool.
BUG=117940
TEST=
Review URL: http://codereview.chromium.org/9699115
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@127335 0039d316-1c4b-4281-b951-d872f2087c98
CrOS-Libchrome-Original-Commit: caaf3ccabb7c80184ad37c92db43ff79580e067d
2 files changed