Move dir_reader to base/files

base/files/dir_reader_linux.h

Index: base/files/dir_reader_linux.h
diff --git a/base/dir_reader_linux.h b/base/files/dir_reader_linux.h
similarity index 91%
rename from base/dir_reader_linux.h
rename to base/files/dir_reader_linux.h
index 4187b4ecd35235dbad54285c17c3d2d20ce62c4e..2352273f37ccc115b062de7a7e99752676b4007d 100644
--- a/base/dir_reader_linux.h
+++ b/base/files/dir_reader_linux.h
@@ -1,9 +1,9 @@
-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// 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.
 
-#ifndef BASE_DIR_READER_LINUX_H_
-#define BASE_DIR_READER_LINUX_H_
+#ifndef BASE_FILES_DIR_READER_LINUX_H_
+#define BASE_FILES_DIR_READER_LINUX_H_
 #pragma once
 
 #include <errno.h>
@@ -96,4 +96,4 @@ class DirReaderLinux {
 
 }  // namespace base
 
-#endif // BASE_DIR_READER_LINUX_H_
+#endif // BASE_FILES_DIR_READER_LINUX_H_