Instant Extended: Fallback to local preview if the remote instant page is not ready on user input.

chrome/browser/instant/instant_controller.h

Index: chrome/browser/instant/instant_controller.h
diff --git a/chrome/browser/instant/instant_controller.h b/chrome/browser/instant/instant_controller.h
index 8e5ea7c1dd06eaaa26d9dbf7ef2fde7387f569e2..6c6dfa6ea185f7f5a30e582c9f153f85cd7cfa1d 100644
--- a/chrome/browser/instant/instant_controller.h
+++ b/chrome/browser/instant/instant_controller.h
@@ -197,6 +197,11 @@ class InstantController {
   // deleted and recreated. Else the refresh is skipped.
   void OnStaleLoader();
 
+  // If the |loader_| being used is in fallback mode, it will be switched back
+  // to the remote loader if the loader is not showing and the omnibox does not
+  // have focus.
+  void MaybeSwitchToRemoteLoader();
+
   // If the active tab is an Instant search results page, sets |instant_tab_| to
   // point to it. Else, deletes any existing |instant_tab_|.
   void ResetInstantTab();