DummyTaskObserver  662 base/message_loop/message_loop_unittest.cc   explicit DummyTaskObserver(int num_tasks)
DummyTaskObserver  691 base/message_loop/message_loop_unittest.cc   DISALLOW_COPY_AND_ASSIGN(DummyTaskObserver);
DummyTaskObserver  696 base/message_loop/message_loop_unittest.cc   DummyTaskObserver observer(kNumPosts);