mojo leveldb: Add an iteration interface.

components/leveldb/util.h

Index: components/leveldb/util.h
diff --git a/components/leveldb/util.h b/components/leveldb/util.h
deleted file mode 100644
index cf7a1296bb67567f97941763bdf19b8ea6c6fde3..0000000000000000000000000000000000000000
--- a/components/leveldb/util.h
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright 2016 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 COMPONENTS_LEVELDB_UTIL_H_
-#define COMPONENTS_LEVELDB_UTIL_H_
-
-#include "components/leveldb/public/interfaces/leveldb.mojom.h"
-
-namespace leveldb {
-
-class Slice;
-class Status;
-
-DatabaseError LeveldbStatusToError(const leveldb::Status& s);
-
-// Builds a Slice pointing to the data inside |a|. This is not a type-converter
-// as it is not a copy operation; the returned Slice points into |a| and must
-// outlive |a|.
-leveldb::Slice GetSliceFor(const mojo::Array<uint8_t>& a);
-
-}  // namespace leveldb
-
-#endif  // COMPONENTS_LEVELDB_UTIL_H_