Merge "MediaPlayer2: allow prepared->pause"

            void process() {

                stayAwake(false);

                // TODO: remove this block when native code allows prepared -> pause

                // and sends MEDIA_INFO_DATA_SOURCE_START when pipeline is created.

                if (getState() == PLAYER_STATE_PREPARED) {

                    final DataSourceDesc dsd;

                    synchronized (mSrcLock) {

                        dsd = mCurrentDSD;

                    }

                    sendEvent(new EventNotifier() {

                        @Override

                        public void notify(EventCallback callback) {

                            callback.onInfo(

                                    MediaPlayer2Impl.this, dsd, MEDIA_INFO_DATA_SOURCE_START, 0);

                        }

                    });

                }

                _pause();

            }

        });