Improvements to the offline intersitial and easter egg

chrome/renderer/net/net_error_page_controller.h

Index: chrome/renderer/net/net_error_page_controller.h
diff --git a/chrome/renderer/net/net_error_page_controller.h b/chrome/renderer/net/net_error_page_controller.h
index 2d4f30a1412267e6c85887edd1ffd3ba4cc3caa6..a3146b560c85477dc7c7deaed3f660458d452587 100644
--- a/chrome/renderer/net/net_error_page_controller.h
+++ b/chrome/renderer/net/net_error_page_controller.h
@@ -43,6 +43,9 @@ class NetErrorPageController
   // service.
   bool TrackClick(const gin::Arguments& args);
 
+  // Track easter egg plays.
+  void TrackEasterEgg();
+
   // gin::WrappableBase
   gin::ObjectTemplateBuilder GetObjectTemplateBuilder(
       v8::Isolate* isolate) override;