Revert of Open MessagePumpLibevent's pipe with O_CLOEXEC

base/files/file_util_posix.cc

 // 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.
 
 #include "base/files/file_util.h"
 
 #include <dirent.h>
 #include <errno.h>
 #include <fcntl.h>
 #include <libgen.h>
@@ skipping 333 matching lines @@
 
     current = traversal.Next();
     if (!current.empty())
       from_stat = traversal.GetInfo().stat();
   }
 
   return success;
 }
 #endif  // !defined(OS_NACL_NONSFI)
 
-bool CreateLocalNonBlockingPipe(int fds[2]) {
-#if defined(OS_LINUX)
-  return pipe2(fds, O_CLOEXEC | O_NONBLOCK) == 0;
-#else
-  int raw_fds[2];
-  if (pipe(raw_fds) != 0)
-    return false;
-  ScopedFD fd_out(raw_fds[0]);
-  ScopedFD fd_in(raw_fds[1]);
-  if (!SetCloseOnExec(fd_out.get()))
-    return false;
-  if (!SetCloseOnExec(fd_in.get()))
-    return false;
-  if (!SetNonBlocking(fd_out.get()))
-    return false;
-  if (!SetNonBlocking(fd_in.get()))
-    return false;
-  fds[0] = fd_out.release();
-  fds[1] = fd_in.release();
-  return true;
-#endif
-}
-
 bool SetNonBlocking(int fd) {
   const int flags = fcntl(fd, F_GETFL);
   if (flags == -1)
     return false;
   if (flags & O_NONBLOCK)
     return true;
   if (HANDLE_EINTR(fcntl(fd, F_SETFL, flags | O_NONBLOCK)) == -1)
     return false;
   return true;
 }
-
-bool SetCloseOnExec(int fd) {
-  const int flags = fcntl(fd, F_GETFD);
-  if (flags == -1)
-    return false;
-  if (flags & FD_CLOEXEC)
-    return true;
-  if (HANDLE_EINTR(fcntl(fd, F_SETFD, flags | FD_CLOEXEC)) == -1)
-    return false;
-  return true;
-}
 
 bool PathExists(const FilePath& path) {
   ThreadRestrictions::AssertIOAllowed();
 #if defined(OS_ANDROID)
   if (path.IsContentUri()) {
     return ContentUriExists(path);
   }
 #endif
   return access(path.value().c_str(), F_OK) == 0;
 }
@@ skipping 573 matching lines @@
     return false;
 
   DeleteFile(from_path, true);
   return true;
 }
 
 }  // namespace internal
 
 #endif  // !defined(OS_NACL_NONSFI)
 }  // namespace base