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diff --git a/chromium/mojo/shell/app_child_process_host.h b/chromium/mojo/shell/app_child_process_host.h
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+++ b/chromium/mojo/shell/app_child_process_host.h
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+// Copyright 2014 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 MOJO_SHELL_APP_CHILD_PROCESS_HOST_H_
+#define MOJO_SHELL_APP_CHILD_PROCESS_HOST_H_
+
+#include "base/macros.h"
+#include "mojo/shell/app_child_process.mojom.h"
+#include "mojo/shell/child_process_host.h"
+
+namespace mojo {
+
+namespace embedder {
+struct ChannelInfo;
+}
+
+namespace shell {
+
+// A subclass of |ChildProcessHost| to host a |TYPE_APP| child process, which
+// runs a single app (loaded from the file system).
+//
+// Note: After |Start()|, this object must remain alive until the controller
+// client's |AppCompleted()| is called.
+class AppChildProcessHost : public ChildProcessHost,
+                            public ChildProcessHost::Delegate {
+ public:
+  AppChildProcessHost(Context* context,
+                      AppChildControllerClient* controller_client);
+  virtual ~AppChildProcessHost();
+
+  AppChildController* controller() {
+    return controller_.get();
+  }
+
+ private:
+  // |ChildProcessHost::Delegate| methods:
+  virtual void WillStart() OVERRIDE;
+  virtual void DidStart(bool success) OVERRIDE;
+
+  // Callback for |embedder::CreateChannel()|.
+  void DidCreateChannel(embedder::ChannelInfo* channel_info);
+
+  AppChildControllerClient* const controller_client_;
+
+  AppChildControllerPtr controller_;
+  embedder::ChannelInfo* channel_info_;
+
+  DISALLOW_COPY_AND_ASSIGN(AppChildProcessHost);
+};
+
+}  // namespace shell
+}  // namespace mojo
+
+#endif  // MOJO_SHELL_APP_CHILD_PROCESS_HOST_H_