Remove thread TaskRunner hack from ChannelAssociatedGroupController

With BrowserThreadTaskRunner fixed it is no longer necessary for
ChannelAssociatedGroupController to cache the thread's
ThreadTaskRunnerHandle during Bind. It can instead rely on its
IPC TaskRunner correctly reporting RunsTasksOnCurrentThread even
during shutdown.

BUG=631039
R=yzshen@chromium.org

Review-Url: https://codereview.chromium.org/2177933004
Cr-Commit-Position: refs/heads/master@{#408427}


CrOS-Libchrome-Original-Commit: 7604e7b739ece0f6c3d5314cfe6b3be8431c3f7b
1 file changed
tree: 5de586be20f4d5a1d11221b9cd000662fab939fc
  1. base/
  2. build/
  3. components/
  4. dbus/
  5. device/
  6. ipc/
  7. mojo/
  8. testing/
  9. third_party/
  10. ui/