Convert //components/mus from scoped_ptr to std::unique_ptr

components/mus/ws/window_manager_factory_registry.cc

Index: components/mus/ws/window_manager_factory_registry.cc
diff --git a/components/mus/ws/window_manager_factory_registry.cc b/components/mus/ws/window_manager_factory_registry.cc
index b5c7df580b7556af29033ec7761d10e2405ab550..453c1c68579c73a251f64f336d59dd9a14cd2e6f 100644
--- a/components/mus/ws/window_manager_factory_registry.cc
+++ b/components/mus/ws/window_manager_factory_registry.cc
@@ -29,7 +29,7 @@ void WindowManagerFactoryRegistry::Register(
   if (ContainsServiceForUser(user_id))
     return;
 
-  scoped_ptr<WindowManagerFactoryService> service(
+  std::unique_ptr<WindowManagerFactoryService> service(
       new WindowManagerFactoryService(this, user_id, std::move(request)));
   AddServiceImpl(std::move(service));
 }
@@ -53,7 +53,7 @@ void WindowManagerFactoryRegistry::RemoveObserver(
 }
 
 void WindowManagerFactoryRegistry::AddServiceImpl(
-    scoped_ptr<WindowManagerFactoryService> service) {
+    std::unique_ptr<WindowManagerFactoryService> service) {
   services_.push_back(std::move(service));
 }