Replace Closure in TaskRunner::PostTask with OneShotCallback

base/debug/task_annotator.h

Index: base/debug/task_annotator.h
diff --git a/base/debug/task_annotator.h b/base/debug/task_annotator.h
index 2687c5c930ef0fbdfaf6d9c59bb1ffdd3af58d09..8b42acc8be38815f5f90904b7525f9827ee1b40a 100644
--- a/base/debug/task_annotator.h
+++ b/base/debug/task_annotator.h
@@ -27,8 +27,8 @@ class BASE_EXPORT TaskAnnotator {
                     const PendingTask& pending_task);
 
   // Run a previously queued task. |queue_function| should match what was
-  // passed into |DidQueueTask| for this task.
-  void RunTask(const char* queue_function, const PendingTask& pending_task);
+  // passed into |DidQueueTask| for this task. This resets |pending_task.task|.
+  void RunTask(const char* queue_function, PendingTask* pending_task);
 
  private:
   // Creates a process-wide unique ID to represent this task in trace events.