Refactor BrowsingDataRemover creation for clarity.

chrome/browser/ui/webui/chromeos/login/signin_screen_handler.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/ui/webui/chromeos/login/signin_screen_handler.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/callback.h"
 #include "base/command_line.h"
@@ skipping 1089 matching lines @@
       base::Bind(&SigninScreenHandler::OnDnsCleared,
                  weak_factory_.GetWeakPtr()));
   dns_clear_task_running_ = true;
 }
 
 void SigninScreenHandler::StartClearingCookies() {
   cookies_cleared_ = false;
   if (cookie_remover_)
     cookie_remover_->RemoveObserver(this);
 
-  cookie_remover_ = new BrowsingDataRemover(
-      Profile::FromWebUI(web_ui()),
-      BrowsingDataRemover::EVERYTHING,
-      base::Time::Now());
+  cookie_remover_ = BrowsingDataRemover::CreateForUnboundedRange(
+      Profile::FromWebUI(web_ui()));
   cookie_remover_->AddObserver(this);
   cookie_remover_->Remove(BrowsingDataRemover::REMOVE_SITE_DATA,
                           BrowsingDataHelper::UNPROTECTED_WEB);
 }
 
 void SigninScreenHandler::MaybePreloadAuthExtension() {
   // Fetching of the extension is not started before account picker page is
   // loaded because it can affect the loading speed. Also if |cookie_remover_|
   // or |dns_clear_task_running_| then auth extension showing has already been
   // initiated and preloading is senseless.
@@ skipping 28 matching lines @@
   }
   for (UserList::const_iterator it = users.begin(); it != users.end(); ++it) {
     if (!cros_settings->FindEmailInList(kAccountsPrefUsers, (*it)->email())) {
       return false;
     }
   }
   return true;
 }
 
 }  // namespace chromeos