Migrate old Shortcuts DB data to conform to new type values

chrome/browser/history/shortcuts_database.h

Index: chrome/browser/history/shortcuts_database.h
diff --git a/chrome/browser/history/shortcuts_database.h b/chrome/browser/history/shortcuts_database.h
index 2dd340853ed48308d977918970038915d408b795..5a54d5fa2a42b93da957381ba055db79ba9e7ff2 100644
--- a/chrome/browser/history/shortcuts_database.h
+++ b/chrome/browser/history/shortcuts_database.h
@@ -15,6 +15,7 @@
 #include "base/strings/string16.h"
 #include "chrome/browser/history/shortcuts_backend.h"
 #include "sql/connection.h"
+#include "sql/meta_table.h"
 #include "url/gurl.h"
 
 namespace history {
@@ -63,6 +64,9 @@ class ShortcutsDatabase : public base::RefCountedThreadSafe<ShortcutsDatabase> {
   // Loads all of the shortcuts.
   void LoadShortcuts(GuidToShortcutMap* shortcuts);
 
+  // Returns the current version that we will generate shortcut tables with.
+  static int GetCurrentVersion();
+
  private:
   friend class base::RefCountedThreadSafe<ShortcutsDatabase>;
   friend class ShortcutsDatabaseTest;
@@ -81,6 +85,8 @@ class ShortcutsDatabase : public base::RefCountedThreadSafe<ShortcutsDatabase> {
   sql::Connection db_;
   base::FilePath database_path_;
 
+  sql::MetaTable meta_table_;
+
   static const base::FilePath::CharType kShortcutsDatabaseName[];
 
   DISALLOW_COPY_AND_ASSIGN(ShortcutsDatabase);