Move dir_reader to base/files
TEST=it compiles
BUG=none
Review URL: https://chromiumcodereview.appspot.com/10413022
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@144989 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/base/files/dir_reader_fallback.h b/base/files/dir_reader_fallback.h
new file mode 100644
index 0000000..f236295
--- /dev/null
+++ b/base/files/dir_reader_fallback.h
@@ -0,0 +1,36 @@
+// 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_FILES_DIR_READER_FALLBACK_H_
+#define BASE_FILES_DIR_READER_FALLBACK_H_
+#pragma once
+
+namespace base {
+
+class DirReaderFallback {
+ public:
+ // Open a directory. If |IsValid| is true, then |Next| can be called to start
+ // the iteration at the beginning of the directory.
+ explicit DirReaderFallback(const char* directory_path) {}
+
+ // After construction, IsValid returns true iff the directory was
+ // successfully opened.
+ bool IsValid() const { return false; }
+
+ // Move to the next entry returning false if the iteration is complete.
+ bool Next() { return false; }
+
+ // Return the name of the current directory entry.
+ const char* name() { return 0;}
+
+ // Return the file descriptor which is being used.
+ int fd() const { return -1; }
+
+ // Returns true if this is a no-op fallback class (for testing).
+ static bool IsFallback() { return true; }
+};
+
+} // namespace base
+
+#endif // BASE_FILES_DIR_READER_FALLBACK_H_
