Delete watcher on IO thread in MessagePumpLibeventTest.QuitWatcher.

If StartWatching is run before the WaitableEvent is signaled,
the StopWatching should be called (on the IO thread). Otherwise,
a DCHECK will be called in the destructor of WaitableEventWatcher.

BUG=internal b/21093761
BUG=481290

Review URL: https://codereview.chromium.org/1184093007

Cr-Commit-Position: refs/heads/master@{#335451}


CrOS-Libchrome-Original-Commit: 2b94f7bf55796a7112bd8dc5fafb0797e8bc9949
1 file changed
tree: ea04e57125e5d8d2faa22a2965395ae299f802ab
  1. base/
  2. build/
  3. components/
  4. dbus/
  5. device/
  6. ipc/
  7. mojo/
  8. testing/
  9. third_party/
  10. ui/