scoped_braille_observer_  751 chrome/browser/chromeos/accessibility/accessibility_manager.cc   if (!scoped_braille_observer_.IsObserving(braille_controller))
scoped_braille_observer_  752 chrome/browser/chromeos/accessibility/accessibility_manager.cc     scoped_braille_observer_.Add(braille_controller);
scoped_braille_observer_  277 chrome/browser/chromeos/accessibility/accessibility_manager.h                  AccessibilityManager> scoped_braille_observer_;