Make TaskManagerTabContentsResource explicitly handle prerendering and instant pages.

chrome/browser/prerender/prerender_manager.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_manager.h"
 
 #include <algorithm>
 #include <functional>
 #include <string>
 #include <vector>
@@ skipping 667 matching lines @@
     TabContents* prerender_tab_contents =
         (*it)->contents()->prerender_contents();
     if (prerender_tab_contents &&
         prerender_tab_contents->web_contents() == web_contents) {
       return (*it)->contents();
     }
   }
   return NULL;
 }
 
+const std::vector<WebContents*>
+PrerenderManager::GetAllPrerenderingContents() const {
+  DCHECK(CalledOnValidThread());
+  std::vector<WebContents*> result;
+
+  for (ScopedVector<PrerenderData>::const_iterator it =
+           active_prerenders_.begin();
+       it != active_prerenders_.end(); ++it) {
+    if (TabContents* contents = (*it)->contents()->prerender_contents())
+      result.push_back(contents->web_contents());
+  }
+
+  return result;
+}
+
 void PrerenderManager::MarkWebContentsAsPrerendered(WebContents* web_contents,
                                                     Origin origin) {
   DCHECK(CalledOnValidThread());
   prerendered_web_contents_data_.insert(
       base::hash_map<content::WebContents*,
                      PrerenderedWebContentsData>::value_type(
                          web_contents, PrerenderedWebContentsData(origin)));
 }
 
 void PrerenderManager::MarkWebContentsAsWouldBePrerendered(
@@ skipping 644 matching lines @@
   if (!render_process_host || !render_process_host->GetBrowserContext())
     return NULL;
   Profile* profile = Profile::FromBrowserContext(
       render_process_host->GetBrowserContext());
   if (!profile)
     return NULL;
   return PrerenderManagerFactory::GetInstance()->GetForProfile(profile);
 }
 
 }  // namespace prerender