Function brotli::enc::brotli_bit_stream::BuildHistograms

fn BuildHistograms(
    input: &[u8],
    start_pos: usize,
    mask: usize,
    commands: &[Command],
    n_commands: usize,
    lit_histo: &mut HistogramLiteral,
    cmd_histo: &mut HistogramCommand,
    dist_histo: &mut HistogramDistance,
)