Don't unnecessarily pass the chrome window to GM_registerMenuCommand.
Don't unnecessarily pass the chrome window to GM_registerMenuCommand.

HasClass0/greasemonkey,Ventero/greasemonkey,Martii/greasemonkey,the8472/greasemonkey,Martii/greasemonkey,HasClass0/greasemonkey,Ventero/greasemonkey,the8472/greasemonkey