(Try 2) InstantExtended: remove dead code related to the non-cacheable NTP.

chrome/browser/ui/search/instant_ntp.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_NTP_H_
-#define CHROME_BROWSER_UI_SEARCH_INSTANT_NTP_H_
-
-#include <string>
-
-#include "base/basictypes.h"
-#include "base/compiler_specific.h"
-#include "base/gtest_prod_util.h"
-#include "base/memory/scoped_ptr.h"
-#include "chrome/browser/ui/search/instant_loader.h"
-#include "chrome/browser/ui/search/instant_page.h"
-
-class InstantNTPPrerenderer;
-class Profile;
-
-namespace content {
-class RenderViewHost;
-class WebContents;
-}
-
-// InstantNTP is used to preload an Instant page that will be swapped in when a
-// user navigates to a New Tab Page (NTP). The InstantNTP contents are never
-// shown in an un-committed state.
-class InstantNTP : public InstantPage,
-                   public InstantLoader::Delegate {
- public:
-  InstantNTP(InstantNTPPrerenderer* delegate,
-             const std::string& instant_url,
-             Profile* profile);
-  virtual ~InstantNTP();
-
-  // Creates a new WebContents and loads |instant_url_| into it.
-  // |on_stale_callback| will be called when |loader_| determines the page to
-  // be stale.
-  void InitContents(const base::Closure& on_stale_callback);
-
-  // Releases the WebContents for the Instant page.  This should be called when
-  // the page is about to be committed.
-  scoped_ptr<content::WebContents> ReleaseContents();
-
- private:
-  FRIEND_TEST_ALL_PREFIXES(InstantExtendedNetworkTest,
-                           NTPReactsToNetworkChanges);
-
-  // Overridden from content::WebContentsObserver:
-  virtual void RenderProcessGone(
-      base::TerminationStatus status) OVERRIDE;
-
-  // Overridden from InstantLoader::Delegate:
-  virtual void OnSwappedContents() OVERRIDE;
-  virtual content::WebContents* OpenURLFromTab(
-      content::WebContents* source,
-      const content::OpenURLParams& params) OVERRIDE;
-  virtual void LoadCompletedMainFrame() OVERRIDE;
-
-  InstantLoader loader_;
-  InstantNTPPrerenderer* const ntp_prerenderer_;
-
-  DISALLOW_COPY_AND_ASSIGN(InstantNTP);
-};
-
-#endif  // CHROME_BROWSER_UI_SEARCH_INSTANT_NTP_H_