gtk/pepperflashplugin/pepperflashplugin.install

instructions() {

  /bin/cat << EOF
MAKING CHROMIUM USE PEPPER FLASH
To enable the use of Pepper Flash with Chromium, append the following line
to /etc/chromium/default:

    . /usr/lib/PepperFlash/chromium_pepperflashplayer.sh

(I.e. a period, then a space, then the filepath.)
Restart Chromium, and load the chrome://plugins page to verify that the plugin is active.
EOF

}

post_install() {
    instructions
}

post_upgrade() {
    post_install
}