Add base::TaskTraits::Override().

base/task_scheduler/task.cc

Index: base/task_scheduler/task.cc
diff --git a/base/task_scheduler/task.cc b/base/task_scheduler/task.cc
index fc513e3e9fb53945bc22b21185430457e9e382ea..3cf26be0be41fee8bf77af36a34fcd70aabdc6cb 100644
--- a/base/task_scheduler/task.cc
+++ b/base/task_scheduler/task.cc
@@ -24,11 +24,12 @@ Task::Task(const tracked_objects::Location& posted_from,
           false),  // Not nestable.
       // Prevent a delayed BLOCK_SHUTDOWN task from blocking shutdown before
       // being scheduled by changing its shutdown behavior to SKIP_ON_SHUTDOWN.
-      traits(!delay.is_zero() && traits.shutdown_behavior() ==
-                                     TaskShutdownBehavior::BLOCK_SHUTDOWN
-                 ? TaskTraits(traits).WithShutdownBehavior(
-                       TaskShutdownBehavior::SKIP_ON_SHUTDOWN)
-                 : traits),
+      traits(
+          (!delay.is_zero() &&
+           traits.shutdown_behavior() == TaskShutdownBehavior::BLOCK_SHUTDOWN)
+              ? TaskTraits::Override(traits,
+                                     {TaskShutdownBehavior::SKIP_ON_SHUTDOWN})
+              : traits),
       delay(delay) {}
 
 Task::~Task() = default;