root/chrome/browser/ui/views/accessibility/

[..]
  1. accessibility_event_router_views.cc
  2. accessibility_event_router_views.h
  3. accessibility_event_router_views_unittest.cc
  4. browser_views_accessibility_browsertest.cc
  5. invert_bubble_view.cc
  6. invert_bubble_view.h
[..]