Remove the |max_threads| argument from CreateAndSetSimpleTaskScheduler().

ui/ozone/demo/ozone_demo.cc

 // Copyright 2014 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 <utility>
 
 #include "base/at_exit.h"
 #include "base/command_line.h"
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
@@ skipping 320 matching lines @@
   base::CommandLine::Init(argc, argv);
   base::AtExitManager exit_manager;
 
   // Initialize logging so we can enable VLOG messages.
   logging::LoggingSettings settings;
   logging::InitLogging(settings);
 
   // Build UI thread message loop. This is used by platform
   // implementations for event polling & running background tasks.
   base::MessageLoopForUI message_loop;
-  constexpr int kMaxTaskSchedulerThreads = 3;
-  base::TaskScheduler::CreateAndSetSimpleTaskScheduler(
-      kMaxTaskSchedulerThreads);
+  base::TaskScheduler::CreateAndSetSimpleTaskScheduler("OzoneDemo");
 
   ui::OzonePlatform::InitializeForUI();
   ui::KeyboardLayoutEngineManager::GetKeyboardLayoutEngine()
       ->SetCurrentLayoutByName("us");
 
   base::RunLoop run_loop;
 
   WindowManager window_manager(run_loop.QuitClosure());
 
   run_loop.Run();
 
   return 0;
 }