Disable Safari plugin without (re)moving the file
Solution 1:
You have to rename the Flash debug plugin, in order to be available to Chrome.
- Go to 'Chrome.app/Contents/Versions/10.0.../Internet Plug-ins'
- delete the 'Flash Player Plugin for Chrome.plugin'
- put there your debug 'Flash Player.plugin'
- rename it to 'Flash Player Plugin for Chrome.plugin'
- restart Chrome
Solution 2:
Maybe just use the clicktoflash extension (also available from Safari Extensions Gallery)?