SearchTabHelper: Find browser/window instead of having them passed in

chrome/browser/ui/browser.cc

 // Copyright 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/ui/browser.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <string>
@@ skipping 956 matching lines @@
 // Browser, TabStripModelObserver implementation:
 
 void Browser::TabInsertedAt(TabStripModel* tab_strip_model,
                             WebContents* contents,
                             int index,
                             bool foreground) {
   SetAsDelegate(contents, true);
 
   SessionTabHelper::FromWebContents(contents)->SetWindowID(session_id());
 
-  SearchTabHelper::FromWebContents(contents)->OnTabAttachedToWindow(window_);
-
   content::NotificationService::current()->Notify(
       chrome::NOTIFICATION_TAB_PARENTED,
       content::Source<content::WebContents>(contents),
       content::NotificationService::NoDetails());
 
   SyncHistoryWithTabs(index);
 
   // Make sure the loading state is updated correctly, otherwise the throbber
   // won't start if the page is loading.
   LoadingStateChanged(contents, true);
@@ skipping 1674 matching lines @@
     // new window later, thus we need to navigate the window now.
     if (contents) {
       contents->web_contents()->GetController().LoadURL(
           target_url, content::Referrer(), ui::PAGE_TRANSITION_LINK,
           std::string());  // No extra headers.
     }
   }
 
   return contents != NULL;
 }