Bug 695358 - Avoid spewing many "Redeclaration warning for variable Cc" and "Cu" messages. r=gavin

browser/base/content/content.js

@@ -36,9 +36,9 @@
 #
 # ***** END LICENSE BLOCK *****
 
-const Cc = Components.classes;
-const Ci = Components.interfaces;
-const Cu = Components.utils;
+let Cc = Components.classes;
+let Ci = Components.interfaces;
+let Cu = Components.utils;
 
 // Bug 671101 - directly using webNavigation in this context
 // causes docshells to leak

browser/components/tabview/content.js

@@ -36,7 +36,7 @@
 
 "use strict";
 
-const Cu = Components.utils;
+let Cu = Components.utils;
 
 Cu.import("resource:///modules/tabview/utils.jsm");