Move ScopedIPCSupport to mojo/edk/embedder and the mojo::edk namespace.

ipc/mojo/scoped_ipc_support.cc

-// 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.
-
-#include "ipc/mojo/scoped_ipc_support.h"
-
-#include "base/lazy_instance.h"
-#include "base/logging.h"
-#include "base/macros.h"
-#include "mojo/edk/embedder/embedder.h"
-#include "mojo/edk/embedder/process_delegate.h"
-
-namespace IPC {
-
-namespace {
-class IPCSupportInitializer : public mojo::edk::ProcessDelegate {
- public:
-  IPCSupportInitializer() {}
-  ~IPCSupportInitializer() override {}
-
-  void Init(scoped_refptr<base::TaskRunner> io_thread_task_runner) {
-    CHECK(!io_thread_task_runner_);
-    CHECK(io_thread_task_runner);
-    io_thread_task_runner_ = io_thread_task_runner;
-
-    mojo::edk::InitIPCSupport(this, io_thread_task_runner_);
-  }
-
-  void ShutDown() {
-    CHECK(io_thread_task_runner_);
-    mojo::edk::ShutdownIPCSupport();
-  }
-
- private:
-  // mojo::edk::ProcessDelegate:
-  void OnShutdownComplete() override {
-    // TODO(rockot): We should ensure that IO runner shutdown is blocked until
-    // this is called.
-  }
-
-  scoped_refptr<base::TaskRunner> io_thread_task_runner_;
-
-  DISALLOW_COPY_AND_ASSIGN(IPCSupportInitializer);
-};
-
-base::LazyInstance<IPCSupportInitializer>::Leaky ipc_support_initializer;
-
-}  // namespace
-
-ScopedIPCSupport::ScopedIPCSupport(
-    scoped_refptr<base::TaskRunner> io_thread_task_runner) {
-  ipc_support_initializer.Get().Init(io_thread_task_runner);
-}
-
-ScopedIPCSupport::~ScopedIPCSupport() {
-  ipc_support_initializer.Get().ShutDown();
-}
-
-}  // namespace IPC