Remove unused WebWindowFeatures from popup blocker, reducing WebString use in browser

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 1387 matching lines @@
     popup_blocker_helper = PopupBlockerTabHelper::FromWebContents(source);
 
   if (popup_blocker_helper) {
     if ((params.disposition == WindowOpenDisposition::NEW_POPUP ||
          params.disposition == WindowOpenDisposition::NEW_FOREGROUND_TAB ||
          params.disposition == WindowOpenDisposition::NEW_BACKGROUND_TAB ||
          params.disposition == WindowOpenDisposition::NEW_WINDOW) &&
         !params.user_gesture &&
         !base::CommandLine::ForCurrentProcess()->HasSwitch(
             switches::kDisablePopupBlocking)) {
-      if (popup_blocker_helper->MaybeBlockPopup(nav_params,
-                                                WebWindowFeatures())) {
+      if (popup_blocker_helper->MaybeBlockPopup(nav_params)) {
         return NULL;
       }
     }
   }
 
   chrome::Navigate(&nav_params);
 
   return nav_params.target_contents;
 }
 
@@ skipping 1200 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;
 }