Disable "open in incognito window" for incognito windows.
Disable "open in incognito window" for incognito windows.

BUG=http://crbug.com/24637
TEST=as in bug

Review URL: http://codereview.chromium.org/488018

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@34496 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