Session-only local storage cleared on exit.

content/browser/in_process_webkit/dom_storage_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_DOM_STORAGE_CONTEXT_H_
 #define CONTENT_BROWSER_IN_PROCESS_WEBKIT_DOM_STORAGE_CONTEXT_H_
 #pragma once
 
 #include <map>
 #include <set>
 
 #include "base/file_path.h"
+#include "base/gtest_prod_util.h"
 #include "base/memory/ref_counted.h"
 #include "base/string16.h"
 #include "base/time.h"
 
 class DOMStorageArea;
 class DOMStorageMessageFilter;
 class DOMStorageNamespace;
 class WebKitContext;
 
 namespace quota {
@@ skipping 50 matching lines @@
   const MessageFilterSet* GetMessageFilterSet() const;
 
   // Tells storage namespaces to purge any memory they do not need.
   virtual void PurgeMemory();
 
   // Delete any local storage files that have been touched since the cutoff
   // date that's supplied. Protected origins, per the SpecialStoragePolicy,
   // are not deleted by this method.
   void DeleteDataModifiedSince(const base::Time& cutoff);
 
+  // Delete any local storage files which are allowed to be stored only until
+  // the end of the session. Protected origins, per the SpecialStoragePolicy,
+  // are not deleted by this method.
+  void DeleteSessionOnlyData();
+
   // Deletes a single local storage file.
   void DeleteLocalStorageFile(const FilePath& file_path);
 
   // Deletes the local storage file for the given origin.
   void DeleteLocalStorageForOrigin(const string16& origin_id);
 
   // Deletes all local storage files.
   void DeleteAllLocalStorageFiles();
 
   // The local storage directory.
   static const FilePath::CharType kLocalStorageDirectory[];
 
   // The local storage file extension.
   static const FilePath::CharType kLocalStorageExtension[];
 
   // Get the file name of the local storage file for the given origin.
   FilePath GetLocalStorageFilePath(const string16& origin_id) const;
 
   void set_clear_local_state_on_exit_(bool clear_local_state) {
     clear_local_state_on_exit_ = clear_local_state;
   }
 
 #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:
+
+  FRIEND_TEST_ALL_PREFIXES(DOMStorageTest, SessionOnly);
+
   // Get the local storage instance.  The object is owned by this class.
   DOMStorageNamespace* CreateLocalStorage();
 
   // Get a new session storage namespace.  The object is owned by this class.
   DOMStorageNamespace* CreateSessionStorage(int64 namespace_id);
 
   // Used internally to register storage namespaces we create.
   void RegisterStorageNamespace(DOMStorageNamespace* storage_namespace);
 
   // The WebKit thread half of CloneSessionStorage above.  Static because
@@ skipping 34 matching lines @@
   // Maps ids to StorageNamespaces.  We own these objects.
   typedef std::map<int64, DOMStorageNamespace*> StorageNamespaceMap;
   StorageNamespaceMap storage_namespace_map_;
 
   scoped_refptr<quota::SpecialStoragePolicy> special_storage_policy_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(DOMStorageContext);
 };
 
 #endif  // CONTENT_BROWSER_IN_PROCESS_WEBKIT_DOM_STORAGE_CONTEXT_H_