Update from https://crrev.com/304121

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 10 matching lines @@
 #include <time.h>
 #include <unistd.h>
 
 #if defined(OS_MACOSX)
 #include <AvailabilityMacros.h>
 #include "base/mac/foundation_util.h"
 #elif !defined(OS_CHROMEOS) && defined(USE_GLIB)
 #include <glib.h>  // for g_get_home_dir()
 #endif
 
-#include <fstream>
-
 #include "base/basictypes.h"
 #include "base/files/file_enumerator.h"
 #include "base/files/file_path.h"
 #include "base/files/scoped_file.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/singleton.h"
 #include "base/path_service.h"
 #include "base/posix/eintr_wrapper.h"
 #include "base/stl_util.h"
@@ skipping 378 matching lines @@
   if (CallStat(path.value().c_str(), &file_info) != 0)
     return false;
 
   *mode = file_info.st_mode & FILE_PERMISSION_MASK;
   return true;
 }
 
 bool SetPosixFilePermissions(const FilePath& path,
                              int mode) {
   ThreadRestrictions::AssertIOAllowed();
-  DCHECK((mode & ~FILE_PERMISSION_MASK) == 0);
+  DCHECK_EQ(mode & ~FILE_PERMISSION_MASK, 0);
 
   // Calls stat() so that we can preserve the higher bits like S_ISGID.
   stat_wrapper_t stat_buf;
   if (CallStat(path.value().c_str(), &stat_buf) != 0)
     return false;
 
   // Clears the existing permission bits, and adds the new ones.
   mode_t updated_mode_bits = stat_buf.st_mode & ~FILE_PERMISSION_MASK;
   updated_mode_bits |= mode & FILE_PERMISSION_MASK;
 
@@ skipping 481 matching lines @@
     result = false;
 
   return result;
 }
 #endif  // !defined(OS_MACOSX)
 
 }  // namespace internal
 
 #endif  // !defined(OS_NACL_NONSFI)
 }  // namespace base