DomStorage data deletion and memory purging.

webkit/dom_storage/dom_storage_context.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_CONTEXT_H_
 #define WEBKIT_DOM_STORAGE_DOM_STORAGE_CONTEXT_H_
 #pragma once
 
 #include <map>
 #include <vector>
@@ skipping 76 matching lines @@
     virtual ~EventObserver() {}
   };
 
   DomStorageContext(const FilePath& directory,  // empty for incognito profiles
                     quota::SpecialStoragePolicy* special_storage_policy,
                     DomStorageTaskRunner* task_runner);
   const FilePath& directory() const { return directory_; }
   DomStorageTaskRunner* task_runner() const { return task_runner_; }
   DomStorageNamespace* GetStorageNamespace(int64 namespace_id);
 
-  void GetUsageInfo(std::vector<UsageInfo>* info);
+  void GetUsageInfo(std::vector<UsageInfo>* infos, bool include_file_info);
   void DeleteOrigin(const GURL& origin);
   void DeleteDataModifiedSince(const base::Time& cutoff);
   void PurgeMemory();
 
   // Used by content settings to alter the behavior around
   // what data to keep and what data to discard at shutdown.
   // The policy is not so straight forward to describe, see
   // the implementation for details.
   void SetClearLocalState(bool clear_local_state) {
     clear_local_state_ = clear_local_state;
@@ skipping 37 matching lines @@
   void DeleteSessionNamespace(int64 namespace_id);
   void CloneSessionNamespace(int64 existing_id, int64 new_id);
 
  private:
   friend class base::RefCountedThreadSafe<DomStorageContext>;
   typedef std::map<int64, scoped_refptr<DomStorageNamespace> >
       StorageNamespaceMap;
 
   ~DomStorageContext();
 
+  void ClearLocalStateInCommitSequence();
+
   // Collection of namespaces keyed by id.
   StorageNamespaceMap namespaces_;
 
   // Where localstorage data is stored, maybe empty for the incognito use case.
   const FilePath directory_;
 
   // Used to schedule sequenced background tasks.
   scoped_refptr<DomStorageTaskRunner> task_runner_;
 
   // List of objects observing local storage events.
   ObserverList<EventObserver> event_observers_;
 
   // We use a 32 bit identifier for per tab storage sessions.
   // At a tab per second, this range is large enough for 68 years.
   base::AtomicSequenceNumber session_id_sequence_;
 
   bool is_shutdown_;
   bool clear_local_state_;
   bool save_session_state_;
   scoped_refptr<quota::SpecialStoragePolicy> special_storage_policy_;
 };
 
 }  // namespace dom_storage
 
 #endif  // WEBKIT_DOM_STORAGE_DOM_STORAGE_CONTEXT_H_