Revert "Migrate the IndexedDB backend from Blink to Chromium"

content/browser/indexed_db/leveldb/leveldb_comparator.h

Index: content/browser/indexed_db/leveldb/leveldb_comparator.h
diff --git a/content/browser/indexed_db/leveldb/leveldb_comparator.h b/content/browser/indexed_db/leveldb/leveldb_comparator.h
deleted file mode 100644
index 920d97e2e02a4a946a0502ee73ede99bcf944b70..0000000000000000000000000000000000000000
--- a/content/browser/indexed_db/leveldb/leveldb_comparator.h
+++ /dev/null
@@ -1,24 +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_COMPARATOR_H_
-#define CONTENT_BROWSER_INDEXED_DB_LEVELDB_LEVELDB_COMPARATOR_H_
-
-#include "base/string16.h"
-
-namespace content {
-
-class LevelDBSlice;
-
-class LevelDBComparator {
- public:
-  virtual ~LevelDBComparator() {}
-
-  virtual int Compare(const LevelDBSlice& a, const LevelDBSlice& b) const = 0;
-  virtual const char* Name() const = 0;
-};
-
-}  // namespace content
-
-#endif  // CONTENT_BROWSER_INDEXED_DB_LEVELDB_LEVELDB_COMPARATOR_H_