Remove mojo::edk::test::ScopedIPCSupport

mojo/edk/embedder/process_delegate.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 MOJO_EDK_EMBEDDER_PROCESS_DELEGATE_H_
-#define MOJO_EDK_EMBEDDER_PROCESS_DELEGATE_H_
-
-#include "base/macros.h"
-#include "mojo/edk/system/system_impl_export.h"
-
-namespace mojo {
-namespace edk {
-
-// An interface for process delegates.
-class MOJO_SYSTEM_IMPL_EXPORT ProcessDelegate {
- public:
-  // Called when |ShutdownIPCSupport()| has completed work on the I/O thread.
-  virtual void OnShutdownComplete() = 0;
-
- protected:
-  ProcessDelegate() {}
-  virtual ~ProcessDelegate() {}
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(ProcessDelegate);
-};
-
-}  // namespace edk
-}  // namespace mojo
-
-#endif  // MOJO_EDK_EMBEDDER_PROCESS_DELEGATE_H_