Revert 244407 "InstantExtended: remove dead code related to the ..."

trunk/src/chrome/browser/ui/search/instant_page.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_UI_SEARCH_INSTANT_PAGE_H_
 #define CHROME_BROWSER_UI_SEARCH_INSTANT_PAGE_H_
 
 #include <vector>
 
 #include "base/basictypes.h"
@@ skipping 34 matching lines @@
     // Called upon determination of Instant API support. Either in response to
     // the page loading or because we received some other message.
     virtual void InstantSupportDetermined(const content::WebContents* contents,
                                           bool supports_instant) = 0;
 
     // Called when the page is about to navigate to |url|.
     virtual void InstantPageAboutToNavigateMainFrame(
         const content::WebContents* contents,
         const GURL& url) = 0;
 
+    // Called when the page fails to load for whatever reason.
+    virtual void InstantPageLoadFailed(content::WebContents* contents) = 0;
+
    protected:
     virtual ~Delegate();
   };
 
   virtual ~InstantPage();
 
   // The WebContents corresponding to the page we're talking to. May be NULL.
   content::WebContents* contents() const { return web_contents(); }
 
   // Used to send IPC messages to the page.
@@ skipping 44 matching lines @@
                            AppropriateMessagesSentToIncognitoPages);
 
   // Overridden from content::WebContentsObserver:
   virtual void DidCommitProvisionalLoadForFrame(
       int64 frame_id,
       const base::string16& frame_unique_name,
       bool is_main_frame,
       const GURL& url,
       content::PageTransition transition_type,
       content::RenderViewHost* render_view_host) OVERRIDE;
+  virtual void DidNavigateMainFrame(
+      const content::LoadCommittedDetails& details,
+      const content::FrameNavigateParams& params) OVERRIDE;
+  virtual void DidFailProvisionalLoad(
+      int64 frame_id,
+      const base::string16& frame_unique_name,
+      bool is_main_frame,
+      const GURL& validated_url,
+      int error_code,
+      const base::string16& error_description,
+      content::RenderViewHost* render_view_host) OVERRIDE;
 
   // Overridden from SearchModelObserver:
   virtual void ModelChanged(const SearchModel::State& old_state,
                             const SearchModel::State& new_state) OVERRIDE;
 
   // Update the status of Instant support.
   void InstantSupportDetermined(bool supports_instant);
 
   void ClearContents();
 
   // TODO(kmadhusu): Remove |profile_| from here and update InstantNTP to get
   // |profile| from InstantNTPPrerenderer.
   Profile* profile_;
 
   Delegate* const delegate_;
   scoped_ptr<InstantIPCSender> ipc_sender_;
   const std::string instant_url_;
   const bool is_incognito_;
 
   DISALLOW_COPY_AND_ASSIGN(InstantPage);
 };
 
 #endif  // CHROME_BROWSER_UI_SEARCH_INSTANT_PAGE_H_