Fix compile error.

chrome/browser/prerender/prerender_manager.cc

 // Copyright (c) 2011 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 <string>
 
 #include "base/logging.h"
 #include "base/metrics/field_trial.h"
@@ skipping 580 matching lines @@
   DCHECK(old_tab_contents);
 
   MarkTabContentsAsPrerendered(new_tab_contents->tab_contents());
 
   // Merge the browsing history.
   new_tab_contents->controller().CopyStateFromAndPrune(
       &old_tab_contents->controller(),
       false);
   old_tab_contents->delegate()->SwapTabContents(old_tab_contents,
                                                 new_tab_contents);
-  prerender_contents->CommitHistory(new_tab_contents->tab_contents());
+  prerender_contents->CommitHistory(new_tab_contents);
 
   GURL icon_url = prerender_contents->icon_url();
   if (!icon_url.is_empty()) {
     std::vector<FaviconURL> urls;
     urls.push_back(FaviconURL(icon_url, FaviconURL::FAVICON));
     new_tab_contents->favicon_tab_helper()->OnUpdateFaviconURL(
         prerender_contents->page_id(),
         urls);
   }
 
@@ skipping 397 matching lines @@
   base::TimeTicks cutoff = GetCurrentTimeTicks() -
       base::TimeDelta::FromMilliseconds(kNavigationRecordWindowMs);
   while (!navigations_.empty()) {
     if (navigations_.front().time_ > cutoff)
       break;
     navigations_.pop_front();
   }
 }
 
 }  // namespace prerender