CancelableTaskTracker::PostDelayedTask() support

base/threading/post_task_and_reply_impl.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/threading/post_task_and_reply_impl.h"
 
 #include "base/bind.h"
 #include "base/location.h"
+#include "base/logging.h"
 #include "base/single_thread_task_runner.h"
 #include "base/thread_task_runner_handle.h"
 
 namespace base {
 
 namespace {
 
 // This relay class remembers the MessageLoop that it was created on, and
 // ensures that both the |task| and |reply| Closures are deleted on this same
 // thread. Also, |task| is guaranteed to be deleted before |reply| is run or
@@ skipping 60 matching lines @@
       new PostTaskAndReplyRelay(from_here, task, reply);
   if (!PostTask(from_here, Bind(&PostTaskAndReplyRelay::Run,
                                 Unretained(relay)))) {
     delete relay;
     return false;
   }
 
   return true;
 }
 
+bool PostTaskAndReplyImpl::PostDelayedTaskAndReply(
+    const tracked_objects::Location& from_here,
+    const Closure& task,
+    const Closure& reply,
+    const TimeDelta& delay) {
+  PostTaskAndReplyRelay* relay =
+      new PostTaskAndReplyRelay(from_here, task, reply);
+  if (!PostDelayedTask(from_here, Bind(&PostTaskAndReplyRelay::Run,
+                                       Unretained(relay)), delay)) {
+    delete relay;
+    return false;
+  }
+
+  return true;
+}
+
 }  // namespace internal
 
 }  // namespace base