Extract trace from TaskAnnotator::RunTask to its call sites

components/scheduler/child/task_queue_manager.cc

Index: components/scheduler/child/task_queue_manager.cc
diff --git a/components/scheduler/child/task_queue_manager.cc b/components/scheduler/child/task_queue_manager.cc
index 620ede55ed35563d6e4c42a9f11fabf2d8e483ae..96d07d506a60174b8d34e8ea9196e193b1f9a725 100644
--- a/components/scheduler/child/task_queue_manager.cc
+++ b/components/scheduler/child/task_queue_manager.cc
@@ -691,8 +691,10 @@ bool TaskQueueManager::ProcessTaskFromWorkQueue(
       FOR_EACH_OBSERVER(base::MessageLoop::TaskObserver, task_observers_,
                         WillProcessTask(pending_task));
     }
-    task_annotator_.RunTask("TaskQueueManager::PostTask",
-                            "TaskQueueManager::RunTask", pending_task);
+
+    TRACE_TASK_EXECUTION("TaskQueueManager::ProcessTaskFromWorkQueue",
+                         pending_task);
+    task_annotator_.RunTask("TaskQueueManager::PostTask", pending_task);
 
     // Detect if the TaskQueueManager just got deleted.  If this happens we must
     // not access any member variables after this point.