Bug 1268804 Part 1: Enable SecureContext for Storage API, r=baku

dom/webidl/Navigator.webidl

@@ -87,7 +87,7 @@ interface NavigatorContentUtils {
   //void unregisterContentHandler(DOMString mimeType, DOMString url);
 };
 
-[NoInterfaceObject, Exposed=(Window,Worker)]
+[SecureContext, NoInterfaceObject, Exposed=(Window,Worker)]
 interface NavigatorStorage {
   [Func="mozilla::dom::StorageManager::PrefEnabled"]
   readonly attribute StorageManager storage;

dom/webidl/StorageManager.webidl

@@ -8,7 +8,8 @@
  *
  */
 
-[Exposed=(Window,Worker),
+[SecureContext,
+ Exposed=(Window,Worker),
  Func="mozilla::dom::StorageManager::PrefEnabled"]
 interface StorageManager {
   // [Throws]