095e8aa02b
Bug: 6961494 Don't call clearHelpers in destroy(). It is already called in onDetach, which is where it needs to be. It can't be called by the finalizer Switch onCancel listener to onDismiss listener. Fixes an issue where destroying can live the webcore thread hung because onCancel won't be called, but onDismiss is Change-Id: I669c389c8c9a81d92c27f88d83bcb711c6c0a5ee