CancelableTaskTracker::PostDelayedTask() support

base/threading/post_task_and_reply_impl.cc

Index: base/threading/post_task_and_reply_impl.cc
diff --git a/base/threading/post_task_and_reply_impl.cc b/base/threading/post_task_and_reply_impl.cc
index a82a4fd804386bddaaafafab8c53543c6772e09e..a883f9ef925210c87a1c8e3b919255465743065c 100644
--- a/base/threading/post_task_and_reply_impl.cc
+++ b/base/threading/post_task_and_reply_impl.cc
@@ -6,6 +6,7 @@
 
 #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"
 
@@ -86,6 +87,22 @@ bool PostTaskAndReplyImpl::PostTaskAndReply(
   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