SUPPORTED UBUNTU RELEASES
The pepflashplugin-installer package may be installed on Ubuntu 12.04 (Precise) or newer, for the amd64 or i386 architecture. It is known to work on 11.10 (Oneiric) if the update-notifier and update-notifier-common packages are upgraded to the version shipped with 12.04. It has not been tested on older releases of Ubuntu.
Install Pepper Flash installer on ubuntu 13.04/12.10/12.04
Open the terminal and run the following commands
sudo apt-add-repository ppa:skunk/pepper-flash
sudo apt-get update
sudo apt-get install pepflashplugin-installer
Once you installed pepper flash you need to add the following line
sudo vi /etc/chromium-browser/default
Add the following line
CHROMIUM_FLAGS="$CHROMIUM_FLAGS --ppapi-flash-path=/usr/lib/pepflashplugin-installer/libpepflashplayer.so --ppapi-flash-version=$FLASH_VERSION"
Save and exit the file
Now you are ready to use new Pepper Flash for chromium browser.