Extract duplicated code in browser_tests for closing a browser.

chrome/browser/sessions/session_restore_browsertest_chromeos.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 <list>
 #include <vector>
 
 #include "base/command_line.h"
 #include "base/prefs/pref_service.h"
 #include "chrome/browser/browser_process.h"
@@ skipping 36 matching lines @@
          iter != browser_list_.end(); ++iter) {
       if (*iter == browser) {
         CloseBrowserSynchronously(*iter);
         browser_list_.erase(iter);
         return true;
       }
     }
     return false;
   }
 
-  void CloseBrowserSynchronously(Browser* browser) {
-    content::WindowedNotificationObserver observer(
-        chrome::NOTIFICATION_BROWSER_CLOSED,
-        content::NotificationService::AllSources());
-    browser->window()->Close();
-    observer.Wait();
-  }
-
   Browser::CreateParams CreateParamsForApp(const std::string name,
                                            bool trusted) {
     return Browser::CreateParams::CreateForApp(
         name, trusted, gfx::Rect(), profile(), chrome::GetActiveDesktop());
   }
 
   // Turn on session restore before we restart.
   void TurnOnSessionRestore() {
     SessionStartupPref::SetStartupPref(
         browser()->profile(), SessionStartupPref(SessionStartupPref::LAST));
@@ skipping 87 matching lines @@
   size_t total_count = 0;
   size_t maximized_count = 0;
   for (chrome::BrowserIterator it; !it.done(); it.Next()) {
     ++total_count;
     if (it->window()->IsMaximized())
       ++maximized_count;
   }
   EXPECT_EQ(4u, total_count);
   EXPECT_EQ(2u, maximized_count);
 }