diff -r 000000000000 -r 6474c204b198 ipc/chromium/src/base/file_util_mac.mm
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ipc/chromium/src/base/file_util_mac.mm	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,35 @@
+// Copyright (c) 2006-2008 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/file_util.h"
+
+#import <Cocoa/Cocoa.h>
+#include <copyfile.h>
+
+#include "base/file_path.h"
+#include "base/logging.h"
+#include "base/string_util.h"
+#include "base/scoped_nsautorelease_pool.h"
+
+namespace file_util {
+
+bool GetTempDir(FilePath* path) {
+  base::ScopedNSAutoreleasePool autorelease_pool;
+  NSString* tmp = NSTemporaryDirectory();
+  if (tmp == nil)
+    return false;
+  *path = FilePath([tmp fileSystemRepresentation]);
+  return true;
+}
+
+bool GetShmemTempDir(FilePath* path) {
+  return GetTempDir(path);
+}
+
+bool CopyFile(const FilePath& from_path, const FilePath& to_path) {
+  return (copyfile(from_path.value().c_str(),
+                   to_path.value().c_str(), NULL, COPYFILE_ALL) == 0);
+}
+
+}  // namespace