Purge in-memory localStorage areas if the # of areas exceeds the limit

webkit/dom_storage/dom_storage_host.h

 // 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 WEBKIT_DOM_STORAGE_DOM_STORAGE_HOST_H_
 #define WEBKIT_DOM_STORAGE_DOM_STORAGE_HOST_H_
 
 #include <map>
 
 #include "base/memory/ref_counted.h"
@@ skipping 42 matching lines @@
   // within our associated client process.
   struct NamespaceAndArea {
     scoped_refptr<DomStorageNamespace> namespace_;
     scoped_refptr<DomStorageArea> area_;
     NamespaceAndArea();
     ~NamespaceAndArea();
   };
   typedef std::map<int, NamespaceAndArea > AreaMap;
 
   DomStorageArea* GetOpenArea(int connection_id);
+  DomStorageNamespace* GetNamespace(int connection_id);
 
   scoped_refptr<DomStorageContext> context_;
   AreaMap connections_;
 };
 
 }  // namespace dom_storage
 
 #endif  // WEBKIT_DOM_STORAGE_DOM_STORAGE_HOST_H_