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

chrome/browser/ui/search/instant_ntp.cc

-// 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.
-
-#include "chrome/browser/ui/search/instant_ntp.h"
-
-#include "base/metrics/histogram.h"
-#include "chrome/browser/profiles/profile.h"
-#include "chrome/browser/ui/search/instant_ntp_prerenderer.h"
-#include "chrome/browser/ui/search/search_tab_helper.h"
-#include "chrome/browser/ui/webui/ntp/ntp_user_data_logger.h"
-#include "content/public/browser/web_contents.h"
-#include "url/gurl.h"
-
-InstantNTP::InstantNTP(InstantNTPPrerenderer* ntp_prerenderer,
-                       const std::string& instant_url,
-                       Profile* profile)
-    : InstantPage(ntp_prerenderer, instant_url, profile,
-                  profile->IsOffTheRecord()),
-      loader_(this),
-      ntp_prerenderer_(ntp_prerenderer) {
-}
-
-InstantNTP::~InstantNTP() {
-  if (contents())
-    ReleaseContents().reset();
-}
-
-void InstantNTP::InitContents(const base::Closure& on_stale_callback) {
-  DCHECK(!contents());
-  GURL instantNTP_url(instant_url());
-  loader_.Init(instantNTP_url, profile(), on_stale_callback);
-  SetContents(loader_.contents());
-  content::WebContents* content = contents();
-  SearchTabHelper::FromWebContents(content)->InitForPreloadedNTP();
-
-  loader_.Load();
-}
-
-scoped_ptr<content::WebContents> InstantNTP::ReleaseContents() {
-  SetContents(NULL);
-  return loader_.ReleaseContents();
-}
-
-void InstantNTP::LoadCompletedMainFrame() {
-  ntp_prerenderer_->LoadCompletedMainFrame();
-}
-
-void InstantNTP::RenderProcessGone(base::TerminationStatus /* status */) {
-  ntp_prerenderer_->RenderProcessGone();
-}
-
-void InstantNTP::OnSwappedContents() {
-  SetContents(loader_.contents());
-}
-
-content::WebContents* InstantNTP::OpenURLFromTab(
-    content::WebContents* source,
-    const content::OpenURLParams& params) {
-  return NULL;
-}