Update mojo sdk to rev 3d23dae011859a2aae49f1d1adde705c8e85d819

ipc/mojo/scoped_ipc_support.h

+// Copyright 2015 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.
+
+#ifndef IPC_MOJO_SCOPED_IPC_SUPPORT_H_
+#define IPC_MOJO_SCOPED_IPC_SUPPORT_H_
+
+#include "base/macros.h"
+#include "base/memory/ref_counted.h"
+#include "base/task_runner.h"
+#include "ipc/ipc_export.h"
+
+namespace IPC {
+
+// Perform any necessary Mojo IPC initialization. A ScopedIPCSupport object
+// should be instantiated and retained by any component which makes direct calls
+// to the Mojo EDK. This is used to ensure that the EDK is initialized within
+// the current process and that it is shutdown cleanly when no longer in use.
+//
+// NOTE: Unless you are making explicit calls to functions in the
+// mojo::embedder namespace, you almost definitely DO NOT need this and should
+// not be using it.
+class IPC_MOJO_EXPORT ScopedIPCSupport {
+ public:
+  ScopedIPCSupport(scoped_refptr<base::TaskRunner> io_thread_task_runner);
+  ~ScopedIPCSupport();
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(ScopedIPCSupport);
+};
+
+}  // namespace IPC
+
+#endif  // IPC_MOJO_SCOPED_IPC_SUPPORT_H_