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

chrome/browser/instant/instant_tab.h

Index: chrome/browser/instant/instant_tab.h
diff --git a/chrome/browser/instant/instant_tab.h b/chrome/browser/instant/instant_tab.h
index 2e0321abe3bb6926efaff9b8bb7b9ee9214bf960..7585e3522a2dcf9090376d9b9628a258c1e93401 100644
--- a/chrome/browser/instant/instant_tab.h
+++ b/chrome/browser/instant/instant_tab.h
@@ -45,6 +45,7 @@ class InstantTab : public InstantClient::Delegate {
   void SetDisplayInstantResults(bool display_instant_results);
   void UpOrDownKeyPressed(int count);
   void SetMarginSize(int start, int end);
+  void InitializeFonts();
 
  private:
   // Overridden from InstantClient::Delegate:
@@ -60,6 +61,7 @@ class InstantTab : public InstantClient::Delegate {
   virtual void AboutToNavigateMainFrame(const GURL& url) OVERRIDE;
   virtual void NavigateToURL(const GURL& url,
                              content::PageTransition transition) OVERRIDE;
+  virtual void RenderViewCreated(content::RenderViewHost* host) OVERRIDE;
 
   InstantClient client_;
   InstantController* const controller_;