140104 r=curt sr=dveditz

blow away chrome.rdf and overlayinfo

xpinstall/packager/windows/browser.jst

@@ -405,6 +405,8 @@ function upgradeCleanup()
   deleteThisFile("Components", "evntloop.dll");
   deleteThisFile("Components", "nativapp.dll");
   deleteThisFile("Components", "universalchardet.dll");
+  deleteThisFile("Chrome",     "chrome.rdf");
+  deleteThisFolder("Chrome",   "overlayinfo");
 }
 
 // main