Add WorkerPool::PostTaskAndReply and use in DHCP code.

base/threading/worker_pool.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/worker_pool.h"
+
+#include "base/bind.h"
+#include "base/threading/post_task_and_reply_impl.h"
+#include "base/tracked_objects.h"
+
+namespace base {
+
+namespace {
+
+class PostTaskAndReplyWorkerPool : public internal::PostTaskAndReplyImpl {
+public:
+  PostTaskAndReplyWorkerPool(bool task_is_slow) : task_is_slow_(task_is_slow) {
+  }
+
+  bool PostTask(const tracked_objects::Location& from_here,

[willchan no longer on Chromium, 2011/10/13 22:33:45]

virtual and OVERRIDE

[Jói, 2011/10/13 22:46:07]

Done.

+                const Closure& task) {
+    return WorkerPool::PostTask(from_here, task, task_is_slow_);
+  }
+
+private:
+  bool task_is_slow_;
+};
+
+}  // namespace
+
+bool WorkerPool::PostTaskAndReply(const tracked_objects::Location& from_here,
+                                  const Closure& task,
+                                  const Closure& reply,
+                                  bool task_is_slow) {
+  return PostTaskAndReplyWorkerPool(task_is_slow).PostTaskAndReply(
+      from_here, task, reply);
+}
+
+}  // namespace base