Remove mojo/shell and (most) service implementations

mojo/shell/app_child_process_host.h

-// 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);
-  ~AppChildProcessHost() override;
-
-  AppChildController* controller() {
-    return controller_.get();
-  }
-
- private:
-  // |ChildProcessHost::Delegate| methods:
-  void WillStart() override;
-  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_