Appcache, local storage, indexed db, databases: skip exit-time deletion when restarting.

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 <map>
 #include <set>
@@ skipping 41 matching lines @@
   // The indexed db directory.
   static const FilePath::CharType kIndexedDBDirectory[];
 
   // The indexed db file extension.
   static const FilePath::CharType kIndexedDBExtension[];
 
   void set_clear_local_state_on_exit(bool clear_local_state) {
     clear_local_state_on_exit_ = clear_local_state;
   }
 
+  // Disables the exit-time deletion for all data (also session-only data).
+  void SaveSessionState() {
+    save_session_state_ = true;
+  }
+
   // Deletes all indexed db files for the given origin.
   void DeleteIndexedDBForOrigin(const GURL& origin_url);
 
   // Methods used in response to QuotaManager requests.
   void GetAllOrigins(std::vector<GURL>* origins);
   int64 GetOriginDiskUsage(const GURL& origin_url);
   base::Time GetOriginLastModified(const GURL& origin_url);
 
   // Methods called by IndexedDBDispatcherHost for quota support.
   void ConnectionOpened(const GURL& origin_url);
   void ConnectionClosed(const GURL& origin_url);
   void TransactionComplete(const GURL& origin_url);
   bool WouldBeOverQuota(const GURL& origin_url, int64 additional_bytes);
   bool IsOverQuota(const GURL& origin_url);
 
   quota::QuotaManagerProxy* quota_manager_proxy();
 
   // For unit tests allow to override the |data_path_|.
   void set_data_path_for_testing(const FilePath& data_path) {
     data_path_ = data_path;
   }
 
  private:
   FRIEND_TEST_ALL_PREFIXES(ExtensionServiceTest, ClearExtensionData);
   FRIEND_TEST_ALL_PREFIXES(ExtensionServiceTest, ClearAppData);
   FRIEND_TEST_ALL_PREFIXES(IndexedDBBrowserTest, ClearLocalState);
   FRIEND_TEST_ALL_PREFIXES(IndexedDBBrowserTest, ClearSessionOnlyDatabases);
+  FRIEND_TEST_ALL_PREFIXES(IndexedDBBrowserTest, SaveSessionState);
   friend class IndexedDBQuotaClientTest;
 
   typedef std::map<GURL, int64> OriginToSizeMap;
   class IndexedDBGetUsageAndQuotaCallback;
 
   FilePath GetIndexedDBFilePath(const string16& origin_id) const;
   int64 ReadUsageFromDisk(const GURL& origin_url) const;
   void EnsureDiskUsageCacheInitialized(const GURL& origin_url);
   void QueryDiskAndUpdateQuotaUsage(const GURL& origin_url);
   void GotUsageAndQuota(const GURL& origin_url, quota::QuotaStatusCode,
@@ skipping 12 matching lines @@
     std::set<GURL>* set = GetOriginSet();
     return set->find(origin_url) != set->end();
   }
 
   // Only for testing.
   void ResetCaches();
 
   scoped_ptr<WebKit::WebIDBFactory> idb_factory_;
   FilePath data_path_;
   bool clear_local_state_on_exit_;
+  // If true, nothing (not even session-only data) should be deleted on exit.
+  bool save_session_state_;
   scoped_refptr<quota::SpecialStoragePolicy> special_storage_policy_;
   scoped_refptr<quota::QuotaManagerProxy> quota_manager_proxy_;
   scoped_ptr<std::set<GURL> > origin_set_;
   OriginToSizeMap origin_size_map_;
   OriginToSizeMap space_available_map_;
   std::map<GURL, unsigned int> connection_count_;
 
   DISALLOW_COPY_AND_ASSIGN(IndexedDBContext);
 };
 
 #endif  // CONTENT_BROWSER_IN_PROCESS_WEBKIT_INDEXED_DB_CONTEXT_H_