Merge "Few minor TTS clean ups."

            //

            // (Even if it did, all it would result in is a warning message).

            mQueue.add(new ListEntry(SYNTHESIS_DONE, token, HIGH_PRIORITY));

        } else  {

            if (token != null) {

                if (token.getType() == MessageParams.TYPE_AUDIO) {

        } else if (token.getType() == MessageParams.TYPE_AUDIO) {

            ((AudioMessageParams) token).getPlayer().stop();

            // No cleanup required for audio messages.

        } else if (token.getType() == MessageParams.TYPE_SILENCE) {

            ((SilenceMessageParams) token).getConditionVariable().open();

                }

            }

            // No cleanup required for silence messages.

        }

    }

                service.setCallback(getPackageName(), null);

                service.stop(getPackageName());

                mServiceConnection.disconnect();

                // Context#unbindService does not result in a call to

                // ServiceConnection#onServiceDisconnected. As a result, the

                // service ends up being destroyed (if there are no other open

                // connections to it) but the process lives on and the

                // ServiceConnection continues to refer to the destroyed service.

                //

                // This leads to tons of log spam about SynthThread being dead.

                mServiceConnection = null;

                mCurrentEngine = null;

                return null;

            }

            mCallbacks.setCallback(packageName, cb);

        }

        private boolean isDefault(String lang, String country, String variant) {

            return Locale.getDefault().equals(new Locale(lang, country, variant));

        }

        private String intern(String in) {

            // The input parameter will be non null.

            return in.intern();