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diff --git a/media/gmp-clearkey/0.1/gmp-task-utils.h b/media/gmp-clearkey/0.1/gmp-task-utils.h
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+/*
+ * Copyright 2015, Mozilla Foundation and contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Original author: ekr@rtfm.com
+
+#ifndef gmp_task_utils_h_
+#define gmp_task_utils_h_
+
+#include "gmp-api/gmp-platform.h"
+
+class gmp_task_args_base : public GMPTask {
+public:
+  virtual void Destroy() { delete this; }
+  virtual void Run() = 0;
+};
+
+// The generated file contains four major function templates
+// (in variants for arbitrary numbers of arguments up to 10,
+// which is why it is machine generated). The four templates
+// are:
+//
+// WrapTask(o, m, ...) -- wraps a member function m of an object ptr o
+// WrapTaskRet(o, m, ..., r) -- wraps a member function m of an object ptr o
+//                                  the function returns something that can
+//                                  be assigned to *r
+// WrapTaskNM(f, ...) -- wraps a function f
+// WrapTaskNMRet(f, ..., r) -- wraps a function f that returns something
+//                                 that can be assigned to *r
+//
+// All of these template functions return a GMPTask* which can be passed
+// to DispatchXX().
+#include "gmp-task-utils-generated.h"
+
+#endif // gmp_task_utils_h_