Remove PrerenderResourceThrottle and related infrastructure.

chrome/browser/prerender/prerender_contents.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_contents.h"
 
 #include <algorithm>
 #include <utility>
 
 #include "base/process_util.h"
@@ skipping 397 matching lines @@
          it != alias_urls_.end();
          ++it) {
       InformRenderProcessAboutPrerender(*it, false, creator_child_id_);
     }
   }
 
   // If we still have a TabContents, clean up anything we need to and then
   // destroy it.
   if (prerender_contents_.get())
     delete ReleasePrerenderContents();
-
-  // The following URLs are no longer rendering.
-  prerender_tracker_->RemovePrerenderURLsOnUIThread(alias_urls_);
 }
 
 void PrerenderContents::Observe(int type,
                                 const content::NotificationSource& source,
                                 const content::NotificationDetails& details) {
   switch (type) {
     case chrome::NOTIFICATION_PROFILE_DESTROYED:
       Destroy(FINAL_STATUS_PROFILE_DESTROYED);
       return;
 
@@ skipping 84 matching lines @@
     Destroy(FINAL_STATUS_HTTPS);
     return false;
   }
   if (prerender_manager_->HasRecentlyBeenNavigatedTo(url)) {
     Destroy(FINAL_STATUS_RECENTLY_VISITED);
     return false;
   }
 
   alias_urls_.push_back(url);
   InformRenderProcessAboutPrerender(url, true, creator_child_id_);
-  prerender_tracker_->AddPrerenderURLOnUIThread(url);
   return true;
 }
 
 void PrerenderContents::AddAliasURLsFromOtherPrerenderContents(
     PrerenderContents* other_pc) {
   for (std::vector<GURL>::const_iterator it = other_pc->alias_urls_.begin();
        it != other_pc->alias_urls_.end();
        ++it) {
     alias_urls_.push_back(*it);
-    prerender_tracker_->AddPrerenderURLOnUIThread(*it);
   }
 }
 
 bool PrerenderContents::MatchesURL(const GURL& url, GURL* matching_url) const {
   std::vector<GURL>::const_iterator matching_url_iterator =
       std::find_if(alias_urls_.begin(),
                    alias_urls_.end(),
                    PrerenderURLPredicate(url));
   if (matching_url_iterator != alias_urls_.end()) {
     if (matching_url)
@@ skipping 159 matching lines @@
 bool PrerenderContents::IsCrossSiteNavigationPending() const {
   if (!prerender_contents_.get() || !prerender_contents_->web_contents())
     return false;
   const WebContents* web_contents = prerender_contents_->web_contents();
   return (web_contents->GetSiteInstance() !=
           web_contents->GetPendingSiteInstance());
 }
 
 
 }  // namespace prerender