Replace "nested message loop" with "nested run loop" in comments.

chrome/browser/extensions/api/notifications/notifications_apitest.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 "base/strings/string_number_conversions.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/test/scoped_feature_list.h"
 #include "build/build_config.h"
 #include "chrome/browser/apps/app_browsertest_util.h"
@@ skipping 81 matching lines @@
             ->user_gesture());
     if (waiting_)
       base::MessageLoopForUI::current()->QuitWhenIdle();
   }
 
   content::NotificationRegistrar registrar_;
 
   // A sequential list of user gesture notifications from the test extension(s).
   std::deque<bool> results_;
 
-  // True if we're in a nested message loop waiting for results from
+  // True if we're in a nested run loop waiting for results from
   // the extension.
   bool waiting_;
 };
 
 enum class WindowState {
   FULLSCREEN,
   NORMAL
 };
 
 class NotificationsApiTest : public ExtensionApiTest {
@@ skipping 433 matching lines @@
   ASSERT_TRUE(GetFirstAppWindow(extension->id())->GetBaseWindow()->IsActive())
       << "Not Active";
 
   Notification* notification = GetNotificationForExtension(extension);
   ASSERT_TRUE(notification);
 
   // The extension's window is being shown and focused, so its expected that
   // the notification displays on top of it.
   ASSERT_TRUE(notification->delegate()->ShouldDisplayOverFullscreen());
 }