Revert 91690 - Implement QM::GetOriginsModifiedSince for browser data deleter support

webkit/quota/quota_database.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 WEBKIT_QUOTA_QUOTA_DATABASE_H_
 #define WEBKIT_QUOTA_QUOTA_DATABASE_H_
 
 #include <set>
 #include <string>
 
@@ skipping 23 matching lines @@
 class QuotaDatabase {
  public:
   // If 'path' is empty, an in memory database will be used.
   explicit QuotaDatabase(const FilePath& path);
   ~QuotaDatabase();
 
   void CloseConnection();
 
   bool GetHostQuota(const std::string& host, StorageType type, int64* quota);
   bool SetHostQuota(const std::string& host, StorageType type, int64 quota);
-  bool DeleteHostQuota(const std::string& host, StorageType type);
 
-  bool SetOriginLastAccessTime(const GURL& origin,
-                               StorageType type,
+  bool SetOriginLastAccessTime(const GURL& origin, StorageType type,
                                base::Time last_access_time);
 
-  bool SetOriginLastModifiedTime(const GURL& origin,
-                                 StorageType type,
-                                 base::Time last_modified_time);
+  // Register |origins| to Database with |used_count| = 0 and
+  // specified |last_access_time|.
+  bool RegisterOrigins(const std::set<GURL>& origins,
+                       StorageType type,
+                       base::Time last_access_time);
 
-  // Register initial |origins| info |type| to the database.
-  // This method is assumed to be called only after the installation or
-  // the database schema reset.
-  bool RegisterInitialOriginInfo(
-      const std::set<GURL>& origins, StorageType type);
-
-  bool DeleteOriginInfo(const GURL& origin, StorageType type);
+  bool DeleteHostQuota(const std::string& host, StorageType type);
+  bool DeleteOriginLastAccessTime(const GURL& origin, StorageType type);
 
   bool GetGlobalQuota(StorageType type, int64* quota);
   bool SetGlobalQuota(StorageType type, int64 quota);
 
   // Sets |origin| to the least recently used origin of origins not included
   // in |exceptions| and not granted the special unlimited storage right.
   // It returns false when it failed in accessing the database.
   // |origin| is set to empty when there is no matching origin.
   bool GetLRUOrigin(StorageType type,
                     const std::set<GURL>& exceptions,
                     SpecialStoragePolicy* special_storage_policy,
                     GURL* origin);
 
-  // Populates |origins| with the ones that have been modified since
-  // the |modified_since|.
-  bool GetOriginsModifiedSince(StorageType type,
-                               std::set<GURL>* origins,
-                               base::Time modified_since);
-
   // Returns false if SetOriginDatabaseBootstrapped has never
   // been called before, which means existing origins may not have been
   // registered.
   bool IsOriginDatabaseBootstrapped();
   bool SetOriginDatabaseBootstrapped(bool bootstrap_flag);
 
  private:
   struct QuotaTableEntry {
     std::string host;
     StorageType type;
     int64 quota;
   };
   friend bool operator <(const QuotaTableEntry& lhs,
                          const QuotaTableEntry& rhs);
 
-  struct OriginInfoTableEntry {
+  struct LastAccessTimeTableEntry {
     GURL origin;
     StorageType type;
     int used_count;
     base::Time last_access_time;
-    base::Time last_modified_time;
   };
-  friend bool operator <(const OriginInfoTableEntry& lhs,
-                         const OriginInfoTableEntry& rhs);
-
-  // Structures used for CreateSchema.
-  struct TableSchema {
-    const char* table_name;
-    const char* columns;
-  };
-  struct IndexSchema {
-    const char* index_name;
-    const char* table_name;
-    const char* columns;
-    bool unique;
-  };
+  friend bool operator <(const LastAccessTimeTableEntry& lhs,
+                         const LastAccessTimeTableEntry& rhs);
 
   typedef base::Callback<bool (const QuotaTableEntry&)> QuotaTableCallback;
-  typedef base::Callback<bool (const OriginInfoTableEntry&)>
-      OriginInfoTableCallback;
-
-  struct QuotaTableImporter;
+  typedef base::Callback<bool (const LastAccessTimeTableEntry&)>
+      LastAccessTimeTableCallback;
 
   // For long-running transactions support.  We always keep a transaction open
   // so that multiple transactions can be batched.  They are flushed
   // with a delay after a modification has been made.  We support neither
   // nested transactions nor rollback (as we don't need them for now).
   void Commit();
   void ScheduleCommit();
 
   bool FindOriginUsedCount(const GURL& origin,
                            StorageType type,
                            int* used_count);
 
   bool LazyOpen(bool create_if_needed);
   bool EnsureDatabaseVersion();
+  bool CreateSchema();
   bool ResetSchema();
-  bool UpgradeSchema(int current_version);
 
-  static bool CreateSchema(
-      sql::Connection* database,
-      sql::MetaTable* meta_table,
-      int schema_version, int compatible_version,
-      const TableSchema* tables, size_t tables_size,
-      const IndexSchema* indexes, size_t indexes_size);
+  // |callback| may return false to stop reading data
+  bool DumpQuotaTable(QuotaTableCallback* callback);
+  bool DumpLastAccessTimeTable(LastAccessTimeTableCallback* callback);
 
-  // |callback| may return false to stop reading data.
-  bool DumpQuotaTable(QuotaTableCallback* callback);
-  bool DumpOriginInfoTable(OriginInfoTableCallback* callback);
 
   FilePath db_file_path_;
 
   scoped_ptr<sql::Connection> db_;
   scoped_ptr<sql::MetaTable> meta_table_;
   bool is_recreating_;
   bool is_disabled_;
 
   base::OneShotTimer<QuotaDatabase> timer_;
 
   friend class QuotaDatabaseTest;
   friend class QuotaManager;
 
-  static const TableSchema kTables[];
-  static const IndexSchema kIndexes[];
-
   DISALLOW_COPY_AND_ASSIGN(QuotaDatabase);
 };
 
 }  // namespace quota
 
 #endif  // WEBKIT_QUOTA_QUOTA_DATABASE_H_