Merge "OPP: Fix file sending error by calculating size of file properly." am: 7254204c

    private static long getStreamSize(FileInputStream is) throws IOException {

        long length = 0;

        byte unused[] = new byte[4096];

        while (is.available() > 0) {

            length += is.read(unused, 0, 4096);

        int bytesRead = is.read(unused, 0, 4096);

        while (bytesRead != -1) {

            length += bytesRead;

            bytesRead = is.read(unused, 0, 4096);

        }

        return length;

    }