CancelableTaskTracker::PostDelayedTask() support

base/task_runner.h

Index: base/task_runner.h
diff --git a/base/task_runner.h b/base/task_runner.h
index 7d07b8ceb028ae3a06842b6823e320e70a70997e..a447798a4423c0ef6e99e0487efee95a7c79a49b 100644
--- a/base/task_runner.h
+++ b/base/task_runner.h
@@ -73,7 +73,7 @@ class BASE_EXPORT TaskRunner
   // to have PostDelayedTask behave the same as PostTask.
   virtual bool PostDelayedTask(const tracked_objects::Location& from_here,
                                const Closure& task,
-                               base::TimeDelta delay) = 0;
+                               TimeDelta delay) = 0;
 
   // Returns true if the current thread is a thread on which a task
   // may be run, and false if no task will be run on the current
@@ -128,6 +128,11 @@ class BASE_EXPORT TaskRunner
                         const Closure& task,
                         const Closure& reply);
 
+  bool PostDelayedTaskAndReply(const tracked_objects::Location& from_here,
+                               const Closure& task,
+                               const Closure& reply,
+                               const TimeDelta& delay);
+
  protected:
   friend struct TaskRunnerTraits;