Revert of Open MessagePumpLibevent's pipe with O_CLOEXEC

base/files/file_util_posix.cc

Index: base/files/file_util_posix.cc
diff --git a/base/files/file_util_posix.cc b/base/files/file_util_posix.cc
index 2f32b50fd202b8dcea365b2dbdc5d7fadd74db73..42de9316f1c9b02aa803feb8113c6a03d958e5c7 100644
--- a/base/files/file_util_posix.cc
+++ b/base/files/file_util_posix.cc
@@ -351,29 +351,6 @@
 }
 #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)
@@ -381,17 +358,6 @@
   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;
 }