Merge "Return a runtime error if decryption fails instead of asserting." into honeycomb

    CHECK(buffer != NULL);

    CHECK_EQ((status_t)OK,

             decryptBuffer(mSeqNumber - firstSeqNumberInPlaylist, buffer));

    err = decryptBuffer(mSeqNumber - firstSeqNumberInPlaylist, buffer);

    if (err != OK) {

        LOGE("decryptBuffer failed w/ error %d", err);

        mDataSource->queueEOS(err);

        return;

    }

    if (buffer->size() == 0 || buffer->data()[0] != 0x47) {

        // Not a transport stream???