Update entry page type to include error pages when appropriate.

chrome/browser/prerender/prerender_tab_helper.cc

 // Copyright (c) 2012 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/prerender/prerender_tab_helper.h"
 
 #include "base/bind.h"
 #include "base/metrics/histogram.h"
 #include "base/time/time.h"
 #include "chrome/browser/prerender/prerender_histograms.h"
@@ skipping 81 matching lines @@
     return;
   if (prerender_manager->IsWebContentsPrerendering(web_contents(), NULL))
     return;
   ReportTabHelperURLSeenToLocalPredictor(prerender_manager, url,
                                          web_contents());
 }
 
 void PrerenderTabHelper::DidCommitProvisionalLoadForFrame(
     content::RenderFrameHost* render_frame_host,
     const GURL& validated_url,
+    bool url_is_unreachable,
     ui::PageTransition transition_type) {
   if (render_frame_host->GetParent())
     return;
   RecordEvent(EVENT_MAINFRAME_COMMIT);
   RecordEventIfLoggedInURL(EVENT_MAINFRAME_COMMIT_DOMAIN_LOGGED_IN,
                            validated_url);
   url_ = validated_url;
   PrerenderManager* prerender_manager = MaybeGetPrerenderManager();
   if (!prerender_manager)
     return;
@@ skipping 155 matching lines @@
   prerender_manager->RecordPerceivedPageLoadTime(
       origin_, navigation_type_, perceived_page_load_time,
       fraction_plt_elapsed_at_swap_in, url_);
 
   // Reset state for the next navigation.
   navigation_type_ = NAVIGATION_TYPE_NORMAL;
   origin_ = ORIGIN_NONE;
 }
 
 }  // namespace prerender