Rename SchedulerWorkerThread* to SchedulerWorker*

base/task_scheduler/task_tracker.cc

Index: base/task_scheduler/task_tracker.cc
diff --git a/base/task_scheduler/task_tracker.cc b/base/task_scheduler/task_tracker.cc
index 9e85b5cfc17b7b58c890e964294fbfc0f3680e72..4a272cd54a97044a3be127ac92f96cebecff17d9 100644
--- a/base/task_scheduler/task_tracker.cc
+++ b/base/task_scheduler/task_tracker.cc
@@ -171,8 +171,8 @@ bool TaskTracker::BeforeRunTask(TaskShutdownBehavior shutdown_behavior) {
     // or should be blocking shutdown if it was posted before it did.
     DCHECK_NE(shutdown_behavior, TaskShutdownBehavior::BLOCK_SHUTDOWN);
 
-    // A WorkerThread might extract a non BLOCK_SHUTDOWN task from a
-    // PriorityQueue after shutdown. It shouldn't be allowed to run it.
+    // A worker might extract a non BLOCK_SHUTDOWN task from a PriorityQueue
+    // after shutdown. It shouldn't be allowed to run it.
     return false;
   }