Remove the |max_threads| argument from CreateAndSetSimpleTaskScheduler().

ui/ozone/demo/ozone_demo.cc

Index: ui/ozone/demo/ozone_demo.cc
diff --git a/ui/ozone/demo/ozone_demo.cc b/ui/ozone/demo/ozone_demo.cc
index 42c08c36ba9c5d300d482118c1f540192ad18741..7b750b34e2bf9ede7780e4d19422d36a2508162d 100644
--- a/ui/ozone/demo/ozone_demo.cc
+++ b/ui/ozone/demo/ozone_demo.cc
@@ -337,9 +337,7 @@ int main(int argc, char** argv) {
   // 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()