Revert "Migrate the IndexedDB backend from Blink to Chromium"

content/browser/indexed_db/leveldb/leveldb_iterator.h

Index: content/browser/indexed_db/leveldb/leveldb_iterator.h
diff --git a/content/browser/indexed_db/leveldb/leveldb_iterator.h b/content/browser/indexed_db/leveldb/leveldb_iterator.h
deleted file mode 100644
index b78747f3524aef9173c4d978d1b2f78f3cf7642a..0000000000000000000000000000000000000000
--- a/content/browser/indexed_db/leveldb/leveldb_iterator.h
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2013 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 CONTENT_BROWSER_INDEXED_DB_LEVELDB_LEVELDB_ITERATOR_H_
-#define CONTENT_BROWSER_INDEXED_DB_LEVELDB_LEVELDB_ITERATOR_H_
-
-#include "content/browser/indexed_db/leveldb/leveldb_slice.h"
-
-namespace content {
-
-class LevelDBIterator {
- public:
-  virtual ~LevelDBIterator() {}
-  virtual bool IsValid() const = 0;
-  virtual void SeekToLast() = 0;
-  virtual void Seek(const LevelDBSlice& target) = 0;
-  virtual void Next() = 0;
-  virtual void Prev() = 0;
-  virtual LevelDBSlice Key() const = 0;
-  virtual LevelDBSlice Value() const = 0;
-};
-
-}  // namespace content
-
-#endif  // CONTENT_BROWSER_INDEXED_DB_LEVELDB_LEVELDB_ITERATOR_H_