Bug 950405: add a temporary whatsnew page on Nightly for Australis survey, r=Unfocused

browser/components/nsBrowserContentHandler.js

@@ -583,6 +583,25 @@ nsBrowserContentHandler.prototype = {
 
             overridePage = overridePage.replace("%OLD_VERSION%", old_mstone);
             break;
+
+          // Temporary case for Australis whatsnew
+          case OVERRIDE_NEW_BUILD_ID:
+            let locale = "en-US";
+            try {
+              locale = Services.prefs.getCharPref("general.useragent.locale");
+            } catch (e) {}
+
+            let showedAustralisWhatsNew = false;
+            try {
+              showedAustralisWhatsNew = Services.prefs.getBoolPref("browser.showedAustralisWhatsNew");
+            } catch(e) {}
+
+            // Show the Australis whatsnew page for en-US if we haven't yet shown it
+            if (!showedAustralisWhatsNew && locale == "en-US") {
+              Services.prefs.setBoolPref("browser.showedAustralisWhatsNew", true);
+              overridePage = "https://www.mozilla.org/en-US/firefox/29.0a1/whatsnew/";
+            }
+            break;
         }
       }
     } catch (ex) {}