Implement GetOrigins for indexeddb quota

content/browser/in_process_webkit/indexed_db_context.h

 // Copyright (c) 2011 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_IN_PROCESS_WEBKIT_INDEXED_DB_CONTEXT_H_
 #define CONTENT_BROWSER_IN_PROCESS_WEBKIT_INDEXED_DB_CONTEXT_H_
 #pragma once
 
 #include "base/basictypes.h"
 #include "base/file_path.h"
@@ skipping 44 matching lines @@
 
   // Deletes a single indexed db file.
   void DeleteIndexedDBFile(const FilePath& file_path);
 
   // Deletes all indexed db files for the given origin.
   void DeleteIndexedDBForOrigin(const string16& origin_id);
 
   // Does a particular origin get unlimited storage?
   bool IsUnlimitedStorageGranted(const GURL& origin) const;
 
+  void GetAllOriginIdentifiers(std::vector<string16>* origin_ids);
+
 #ifdef UNIT_TEST
   // For unit tests allow to override the |data_path_|.
   void set_data_path(const FilePath& data_path) { data_path_ = data_path; }
 #endif
 
  private:
   scoped_ptr<WebKit::WebIDBFactory> idb_factory_;
 
   // Path where the indexed db data is stored
   FilePath data_path_;
 
   // True if the destructor should delete its files.
   bool clear_local_state_on_exit_;
 
   scoped_refptr<quota::SpecialStoragePolicy> special_storage_policy_;
 
   scoped_refptr<quota::QuotaManagerProxy> quota_manager_proxy_;
 
   DISALLOW_COPY_AND_ASSIGN(IndexedDBContext);
 };
 
 #endif  // CONTENT_BROWSER_IN_PROCESS_WEBKIT_INDEXED_DB_CONTEXT_H_