Download the latest chromium build, fixed from https://github.com/jmcantrell/misc/blob/master/bin/latest-chromium

latest-chromium.sh

#!/bin/bash

# Install the latest Chromium mac nightly build, but only
# if it's different from the currently installed version.

build_url="http://commondatastorage.googleapis.com/chromium-browser-snapshots/Mac"
install_dir="/Applications/Chromium.app"

# Determine the currently installed chromium build number
if [[ -d $install_dir ]]; then
    current=$(defaults read "$install_dir/Contents/Info" SVNRevision)
else
    current=0
fi

# Most recent version build available from google
latest=$(curl "$build_url/LAST_CHANGE")

if [[ $current != $latest ]]; then
    echo "==> Fetching Chromium build $latest" >&2

    # setup a temp dir to do some work
    tmpdir=$(mktemp -d -t "$(basename "$0").XXX"); cd "$tmpdir"

    trap "cd && rm -rf $tmpdir" INT TERM EXIT

    # fetch it
    wget "$build_url/$latest/chrome-mac.zip"

    printf "\n==> Extracting ...\n" 1>&2
    unzip -q chrome-mac.zip

    rm -rf "$install_dir"

    # move the new one into place
    mv "chrome-mac/Chromium.app" "$install_dir"
    echo "==> Chromium upgraded to build $latest (from $current)."
else
    echo "==> You already have build $latest." 1>&2
fi