From 5f8de423f190bbb79a62f804151bc24824fa32d8 Mon Sep 17 00:00:00 2001
From: "Matt A. Tobin" <mattatobin@localhost.localdomain>
Date: Fri, 2 Feb 2018 04:16:08 -0500
Subject: Add m-esr52 at 52.6.0

---
 dom/media/systemservices/MediaTaskUtils.h | 50 +++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)
 create mode 100644 dom/media/systemservices/MediaTaskUtils.h

(limited to 'dom/media/systemservices/MediaTaskUtils.h')

diff --git a/dom/media/systemservices/MediaTaskUtils.h b/dom/media/systemservices/MediaTaskUtils.h
new file mode 100644
index 000000000..c9b64fd2a
--- /dev/null
+++ b/dom/media/systemservices/MediaTaskUtils.h
@@ -0,0 +1,50 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set sw=2 ts=8 et ft=cpp : */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef mozilla_MediaTaskUtils_h
+#define mozilla_MediaTaskUtils_h
+
+#include "nsThreadUtils.h"
+
+// The main reason this file is separate from MediaUtils.h
+#include "base/task.h"
+
+namespace mozilla {
+namespace media {
+
+/* media::NewTaskFrom() - Create a Task from a lambda.
+ *
+ * Similar to media::NewRunnableFrom() - Create an nsRunnable from a lambda.
+ */
+
+template<typename OnRunType>
+class LambdaTask : public Runnable
+{
+public:
+  explicit LambdaTask(OnRunType&& aOnRun) : mOnRun(Move(aOnRun)) {}
+private:
+  NS_IMETHOD
+  Run() override
+  {
+    mOnRun();
+    return NS_OK;
+  }
+  OnRunType mOnRun;
+};
+
+template<typename OnRunType>
+already_AddRefed<LambdaTask<OnRunType>>
+NewTaskFrom(OnRunType&& aOnRun)
+{
+  typedef LambdaTask<OnRunType> LambdaType;
+  RefPtr<LambdaType> lambda = new LambdaType(Forward<OnRunType>(aOnRun));
+  return lambda.forget();
+}
+
+} // namespace media
+} // namespace mozilla
+
+#endif // mozilla_MediaTaskUtils_h
-- 
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