Add locale as a parameter to the extension link.
Add locale as a parameter to the extension link.

BUG= 28433
TEST= click on puzzle piece and promo line "extension" links; chrome UI language should be included as a parameter in the link.

Review URL: http://codereview.chromium.org/434002

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@32820 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