Revert 90805 - I am submitting this with LGTMs from agl@ and evanm@. I'm marking this as TBR=jam@...

chrome/common/nacl_fork_delegate_linux.h

-// Copyright (c) 2011 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 CHROME_COMMON_NACL_FORK_DELEGATE_LINUX_H_
-#define CHROME_COMMON_NACL_FORK_DELEGATE_LINUX_H_
-#pragma once
-
-#include "base/basictypes.h"
-#include "base/compiler_specific.h"
-#include "content/common/zygote_fork_delegate_linux.h"
-
-// The NaClForkDelegate is created during Chrome linux zygote
-// initialization, and provides "fork()" functionality with
-// NaCl specific process characteristics (specifically address
-// space layout) as an alternative to forking the zygote.
-// A new delegate is passed in as an argument to ZygoteMain().
-class NaClForkDelegate : public ZygoteForkDelegate {
- public:
-  NaClForkDelegate();
-  virtual ~NaClForkDelegate();
-
-  virtual void Init(bool sandboxed,
-                    int browserdesc,
-                    int sandboxdesc) OVERRIDE;
-  virtual bool CanHelp(const std::string& process_type) OVERRIDE;
-  virtual pid_t Fork(const std::vector<int>& fds) OVERRIDE;
-  virtual bool AckChild(int fd,
-                        const std::string& channel_switch) OVERRIDE;
-
- private:
-  bool sandboxed_;
-  int fd_;
-  pid_t pid_;
-};
-
-#endif  // CHROME_COMMON_NACL_FORK_DELEGATE_LINUX_H_