delete webkit/support/simple_xxx's

webkit/support/simple_database_system.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_SUPPORT_SIMPLE_DATABASE_SYSTEM_H_
-#define WEBKIT_SUPPORT_SIMPLE_DATABASE_SYSTEM_H_
-
-#include "base/containers/hash_tables.h"
-#include "base/files/file_path.h"
-#include "base/files/scoped_temp_dir.h"
-#include "base/memory/ref_counted.h"
-#include "base/platform_file.h"
-#include "base/strings/string16.h"
-#include "base/synchronization/lock.h"
-#include "base/threading/thread.h"
-#include "third_party/WebKit/public/web/WebDatabaseObserver.h"
-#include "webkit/browser/database/database_tracker.h"
-#include "webkit/common/database/database_connections.h"
-
-namespace base {
-class MessageLoopProxy;
-class WaitableEvent;
-}
-
-class SimpleDatabaseSystem : public webkit_database::DatabaseTracker::Observer,
-                             public WebKit::WebDatabaseObserver {
- public:
-  static SimpleDatabaseSystem* GetInstance();
-
-  SimpleDatabaseSystem();
-  virtual ~SimpleDatabaseSystem();
-
-  // WebDatabaseObserver implementation, these are called on the script
-  // execution context thread on which the database is opened. This may be
-  // the main thread or background WebWorker threads.
-  virtual void databaseOpened(const WebKit::WebDatabase& database);
-  virtual void databaseModified(const WebKit::WebDatabase& database);
-  virtual void databaseClosed(const WebKit::WebDatabase& database);
-
-  // SQLite VFS related methods, these are called on webcore's
-  // background database threads via the WebKitPlatformSupport impl.
-  base::PlatformFile OpenFile(const base::string16& vfs_file_name,
-                              int desired_flags);
-  int DeleteFile(const base::string16& vfs_file_name, bool sync_dir);
-  uint32 GetFileAttributes(const base::string16& vfs_file_name);
-  int64 GetFileSize(const base::string16& vfs_file_name);
-  int64 GetSpaceAvailable(const std::string& origin_identifier);
-
-  // For use by testRunner, called on the main thread.
-  void ClearAllDatabases();
-  void SetDatabaseQuota(int64 quota);
-
- private:
-  // Used by our WebDatabaseObserver impl, only called on the db_thread
-  void DatabaseOpened(const std::string& origin_identifier,
-                      const base::string16& database_name,
-                      const base::string16& description,
-                      int64 estimated_size);
-  void DatabaseModified(const std::string& origin_identifier,
-                        const base::string16& database_name);
-  void DatabaseClosed(const std::string& origin_identifier,
-                      const base::string16& database_name);
-
-  // DatabaseTracker::Observer implementation
-  virtual void OnDatabaseSizeChanged(const std::string& origin_identifier,
-                                     const base::string16& database_name,
-                                     int64 database_size) OVERRIDE;
-  virtual void OnDatabaseScheduledForDeletion(
-      const std::string& origin_identifier,
-      const base::string16& database_name) OVERRIDE;
-
-  // Used by our public SQLite VFS methods, only called on the db_thread.
-  void VfsOpenFile(const base::string16& vfs_file_name, int desired_flags,
-                   base::PlatformFile* result, base::WaitableEvent* done_event);
-  void VfsDeleteFile(const base::string16& vfs_file_name, bool sync_dir,
-                     int* result, base::WaitableEvent* done_event);
-  void VfsGetFileAttributes(const base::string16& vfs_file_name,
-                            uint32* result, base::WaitableEvent* done_event);
-  void VfsGetFileSize(const base::string16& vfs_file_name,
-                      int64* result, base::WaitableEvent* done_event);
-  void VfsGetSpaceAvailable(const std::string& origin_identifier,
-                            int64* result, base::WaitableEvent* done_event);
-
-  base::FilePath GetFullFilePathForVfsFile(const base::string16& vfs_file_name);
-
-  void ResetTracker();
-  void ThreadCleanup(base::WaitableEvent* done_event);
-
-  // Where the tracker database file and per origin database files reside.
-  base::ScopedTempDir temp_dir_;
-
-  // All access to the db_tracker (except for its construction) and
-  // vfs operations are serialized on a background thread.
-  base::Thread db_thread_;
-  scoped_refptr<base::MessageLoopProxy> db_thread_proxy_;
-  scoped_refptr<webkit_database::DatabaseTracker> db_tracker_;
-  int64 quota_per_origin_;
-
-  // Data members to support waiting for all connections to be closed.
-  scoped_refptr<webkit_database::DatabaseConnectionsWrapper> open_connections_;
-
-  static SimpleDatabaseSystem* instance_;
-};
-
-#endif  // WEBKIT_SUPPORT_SIMPLE_DATABASE_SYSTEM_H_