Revert of Use a token to initialise ChannelMojo and MojoApplication everywhere.

content/common/mojo/channel_init.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 "content/common/mojo/channel_init.h"
+
+#include <utility>
+
+#include "base/bind.h"
+#include "base/bind_helpers.h"
+#include "base/command_line.h"
+#include "base/lazy_instance.h"
+#include "base/memory/ref_counted.h"
+#include "base/message_loop/message_loop.h"
+#include "base/task_runner.h"
+#include "base/thread_task_runner_handle.h"
+#include "mojo/edk/embedder/embedder.h"
+
+namespace content {
+
+ChannelInit::ChannelInit() {}
+
+ChannelInit::~ChannelInit() {}
+
+mojo::ScopedMessagePipeHandle ChannelInit::Init(
+    base::PlatformFile file,
+    scoped_refptr<base::TaskRunner> io_thread_task_runner) {
+  return mojo::edk::CreateMessagePipe(
+      mojo::edk::ScopedPlatformHandle(mojo::edk::PlatformHandle(file)));
+}
+
+}  // namespace content