am 1e533d01: Merge "Ensuring that unbind calls are not queued in the worker thread and executed subsequently on the main thread.  (Bug 7001531)" into jb-mr1-dev

* commit '1e533d01d52076c33414419930598c1d03f1b4a6':
  Ensuring that unbind calls are not queued in the worker thread and executed subsequently on the main thread.  (Bug 7001531)