Enable the encoding menu for javascript and css files. 
Enable the encoding menu for javascript and css files. 

BUG=3565
TEST=Open a JS or CSS file by clicking a link to it in view-source and see if the encoding menu is enabled.


Review URL: http://codereview.chromium.org/12619

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@5982 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser