Index: gears/base/common/permissions_db.h
===================================================================
--- gears/base/common/permissions_db.h	(revision 1639)
+++ gears/base/common/permissions_db.h	(working copy)
@@ -28,6 +28,7 @@
 
 #include <map>
 #include "gears/base/common/database_name_table.h"
+#include "gears/base/common/database2_metadata.h"
 #include "gears/base/common/name_value_table.h"
 #include "gears/base/common/security_model.h"
 #include "gears/base/common/shortcut_table.h"
@@ -142,6 +143,10 @@
                            const char16 *database_name,
                            const char16 *basename);
 
+  // Get the metadata table for Database2 API. The metadata table stores
+  // version information
+  Database2Metadata &GetDatabase2Metadata();
+
  private:
   // Private constructor, callers must use GetDB().
   PermissionsDB();
@@ -157,6 +162,7 @@
 
   // Schema upgrade functions.  Higher-numbered functions call
   // lower-numbered functions as appropriate.
+  bool UpgradeToVersion8();
   bool UpgradeToVersion7();
   bool UpgradeToVersion6();
   bool UpgradeToVersion5();
@@ -182,6 +188,9 @@
 
   DatabaseNameTable database_name_table_;
 
+  // database2 metadata
+  Database2Metadata database2_metadata_table_;
+
   DISALLOW_EVIL_CONSTRUCTORS(PermissionsDB);
   DECL_SINGLE_THREAD
 };