chromium flash player issue

Reason for flash player issue exclusively in Chromium:
The reason why this issue occurs only in Chromium is that until now Chromium used Netscape Plugin API for Flash support. Starting from Ubuntu 14.04, Chromium will stop using Netscape Plugin API. Hence, you will face issues with Adobe Flash Player with Chromium.
Now, why this issue doesn’t occur with other web browsers? Answer is because they use Flash version 11.2.
Fix Adobe Flash Player issue with Chromium:
To fix this issue, we’ll be using Pepper Flash Player, a safer and more stable version of Flash Player from Google. An Adobe Flash Player Pepper installer is available in Ubuntu 14.04 repositories. This installer downloads Google Chrome, extracts Pepper Flash Player and sets it up for Chromium usage.
To install Pepper Flash Player in Ubuntu 14.04, open a terminal and use the following commands:
$sudo apt-get install pepperflashplugin-nonfreesudo 

$update-pepperflashplugin-nonfree --install
Restarting Chromium will do. No need of a system reboot. I hope this quick post helped you to fix Adobe Flash Player issue with Chromium.

for Ubuntu12:

参见：http://ubuntuhandbook.org/index.php/2013/12/install-pepper-flash-chromium-ubuntu-ppa/

代码:

sudo add-apt-repository -y ppa:skunk/pepper-flash
sudo apt-get update
sudo apt-get install pepflashplugin-installer
‘这个过程中会下载一个40M左右的deb包，建议挂vpn，耐心等待

然后在/etc/chromium-browser/default文件尾加入：
. /usr/lib/pepflashplugin-installer/pepflashplayer.sh

代码:

sudo sh -c 'echo ". /usr/lib/pepflashplugin-installer/pepflashplayer.sh" >>/etc/chromium-browser/default'

之后重启chromuim

for Ubuntu14.04

sudo apt-get update
sudo apt-get install chromium-browser
sudo add-apt-repository ppa:skunk/pepper-flash
sudo apt-get update
sudo apt-get install pepflashplugin-installer
sudo update-pepperflashplugin-nonfree --install

卸载命令：

sudo apt-get remove chromium-browser pepflashplugin-installer