Merge "Revert "Fix supportsNonblockingRead""

    virtual status_t read(

            MediaBufferBase **buffer, const ReadOptions *options = NULL) = 0;

    // Returns true if |read| supports nonblocking option, otherwise false.

    // |readMultiple| if supported, always allows the nonblocking option.

    virtual bool supportNonblockingRead() {

        return false;

    }

    virtual ~MediaTrack();

private:

    return mSource->read(buffer, reinterpret_cast<const MediaSource::ReadOptions*>(options));

}

bool RemoteMediaSource::supportNonblockingRead() {

    return mSource->supportNonblockingRead();

}

status_t RemoteMediaSource::pause() {

    return ERROR_UNSUPPORTED;

}

    virtual status_t read(

            MediaBufferBase **buffer,

            const MediaSource::ReadOptions *options = NULL);

    virtual bool supportNonblockingRead();

    virtual status_t pause();

    virtual status_t setStopTimeUs(int64_t stopTimeUs);