Add the HasAreaOpen method to DomStorageHost. Intended for use to make event propagation less chatt…

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_
 #pragma once
 
 #include <map>
 
@@ skipping 28 matching lines @@
   unsigned GetAreaLength(int connection_id);
   NullableString16 GetAreaKey(int connection_id, unsigned index);
   NullableString16 GetAreaItem(int connection_id, const string16& key);
   bool SetAreaItem(int connection_id, const string16& key,
                    const string16& value, const GURL& page_url,
                    NullableString16* old_value);
   bool RemoveAreaItem(int connection_id, const string16& key,
                   const GURL& page_url,
                   string16* old_value);
   bool ClearArea(int connection_id, const GURL& page_url);
+  bool HasAreaOpen(int namespace_id, const GURL& origin) const;
 
  private:
   // Struct to hold references needed for areas that are open
   // 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);
 
   scoped_refptr<DomStorageContext> context_;
   AreaMap connections_;
 };
 
 }  // namespace dom_storage
 
 #endif  // WEBKIT_DOM_STORAGE_DOM_STORAGE_HOST_H_