Purge browser cache for dom storage in a smarter way

content/common/dom_storage/dom_storage_types.h

 // Copyright 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_COMMON_DOM_STORAGE_DOM_STORAGE_TYPES_H_
 #define CONTENT_COMMON_DOM_STORAGE_DOM_STORAGE_TYPES_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 17 matching lines @@
 // that were allowed because the limit imposed in the renderer
 // wasn't exceeded.
 const size_t kPerStorageAreaOverQuotaAllowance = 100 * 1024;
 
 // Value to indicate the localstorage namespace vs non-zero
 // values for sessionstorage namespaces.
 const int64_t kLocalStorageNamespaceId = 0;
 
 const int64_t kInvalidSessionStorageNamespaceId = kLocalStorageNamespaceId;
 
-// Start purging memory if the number of in-memory areas exceeds this.
-const int64_t kMaxInMemoryStorageAreas = 100;
-
 }  // namespace content
 
 #endif  // CONTENT_COMMON_DOM_STORAGE_DOM_STORAGE_TYPES_H_