Enable content embedders to specify mojo application task runner.

content/public/common/mojo_application_info.h

Index: content/public/common/mojo_application_info.h
diff --git a/content/public/common/mojo_application_info.h b/content/public/common/mojo_application_info.h
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index 0000000000000000000000000000000000000000..72513bdfd8362aeaf6e1ac6121b974a1ab8eacc8
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+++ b/content/public/common/mojo_application_info.h
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+// 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 CONTENT_PUBLIC_COMMON_MOJO_APPLICATION_INFO_H_
+#define CONTENT_PUBLIC_COMMON_MOJO_APPLICATION_INFO_H_
+
+#include <memory>
+
+#include "base/callback_forward.h"
+#include "base/memory/ref_counted.h"
+#include "content/common/content_export.h"
+#include "services/shell/public/cpp/shell_client.h"
+
+namespace base {
+class SingleThreadTaskRunner;
+}  // namespace base
+
+namespace content {
+
+struct CONTENT_EXPORT MojoApplicationInfo {
+  using ApplicationFactory = base::Callback<std::unique_ptr<shell::ShellClient>(
+      const base::Closure& quit_closure)>;
+
+  MojoApplicationInfo();
+  MojoApplicationInfo(const MojoApplicationInfo& other);
+  ~MojoApplicationInfo();
+
+  ApplicationFactory application_factory;
+  scoped_refptr<base::SingleThreadTaskRunner> application_task_runner;
+};
+
+}  // namespace content
+
+#endif  // CONTENT_PUBLIC_COMMON_MOJO_APPLICATION_INFO_H_