Revert of Use ChannelMojo between the remoting daemon and network processes.

remoting/base/auto_thread_task_runner.h

 // Copyright (c) 2012 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 REMOTING_BASE_AUTO_THREAD_TASK_RUNNER_H_
 #define REMOTING_BASE_AUTO_THREAD_TASK_RUNNER_H_
 
 #include <memory>
 
 #include "base/callback.h"
@@ skipping 16 matching lines @@
 
   // SingleThreadTaskRunner implementation
   bool PostDelayedTask(const tracked_objects::Location& from_here,
                        const base::Closure& task,
                        base::TimeDelta delay) override;
   bool PostNonNestableDelayedTask(const tracked_objects::Location& from_here,
                                   const base::Closure& task,
                                   base::TimeDelta delay) override;
   bool RunsTasksOnCurrentThread() const override;
 
-  const scoped_refptr<base::SingleThreadTaskRunner>& task_runner() {
-    return task_runner_;
-  }
-
  private:
   ~AutoThreadTaskRunner() override;
 
   // Task posted to |task_runner_| to notify the caller that it may be stopped.
   base::Closure stop_task_;
 
   // The wrapped task runner.
   scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
 
   DISALLOW_COPY_AND_ASSIGN(AutoThreadTaskRunner);
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_BASE_AUTO_THREAD_TASK_RUNNER_H_