libcef: Update due to underlying chromium changes.

- More webkit API refactoring.
- Webkit GYP projects moved upstream.
- Add ImplementsThreadSafeReferenceCounting() for all classes that use runnable methods.
- Enable application cache and databases.

git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@51 5089003a-bbd8-11dd-ad1f-f1f9622dbc98

libcef/browser_database_system.h

@@ -0,0 +1,38 @@
+// Copyright (c) 2009 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 _BROWSER_DATABASE_SYSTEM_H
+#define _BROWSER_DATABASE_SYSTEM_H
+
+#include "base/file_path.h"
+#include "base/platform_file.h"
+#include "base/scoped_temp_dir.h"
+
+class BrowserDatabaseSystem {
+ public:
+  static BrowserDatabaseSystem* GetInstance();
+  BrowserDatabaseSystem();
+  ~BrowserDatabaseSystem();
+
+  base::PlatformFile OpenFile(
+      const FilePath& file_name, int desired_flags,
+      base::PlatformFile* dir_handle);
+  int DeleteFile(const FilePath& file_name, bool sync_dir);
+  long GetFileAttributes(const FilePath& file_name);
+  long long GetFileSize(const FilePath& file_name);
+  void ClearAllDatabases();
+
+ private:
+  FilePath GetDBDir();
+  FilePath GetDBFileFullPath(const FilePath& file_name);
+
+  static BrowserDatabaseSystem* instance_;
+
+  ScopedTempDir temp_dir_;
+
+  // HACK: see OpenFile's implementation
+  base::PlatformFile hack_main_db_handle_;
+};
+
+#endif  // _BROWSER_DATABASE_SYSTEM_H