BEGIN_COM_MAP     123 chrome/browser/google/google_update_win.cc   BEGIN_COM_MAP(GoogleUpdateJobObserver)
BEGIN_COM_MAP      53 content/browser/accessibility/browser_accessibility_win.cc   BEGIN_COM_MAP(BrowserAccessibilityRelation)
BEGIN_COM_MAP      29 win8/metro_driver/ime/input_scope.cc   BEGIN_COM_MAP(InputScopeImpl)
BEGIN_COM_MAP      33 win8/metro_driver/ime/input_source.cc   BEGIN_COM_MAP(InputSourceMonitor)