Fix Chrome OS virtual keyboard accessibility

chrome/browser/ui/aura/accessibility/automation_manager_aura.h

Index: chrome/browser/ui/aura/accessibility/automation_manager_aura.h
diff --git a/chrome/browser/ui/aura/accessibility/automation_manager_aura.h b/chrome/browser/ui/aura/accessibility/automation_manager_aura.h
index 1d1baeff8f0e10cb4928169f4be6f2e1969922fb..4c7accb738e8b4f3dfe6f730cea11e66cfb40c60 100644
--- a/chrome/browser/ui/aura/accessibility/automation_manager_aura.h
+++ b/chrome/browser/ui/aura/accessibility/automation_manager_aura.h
@@ -62,6 +62,8 @@ class AutomationManagerAura : public ui::AXHostDelegate,
 
   // views::AXAuraObjCache::Delegate implementation.
   void OnChildWindowRemoved(views::AXAuraObjWrapper* parent) override;
+  void OnEvent(views::AXAuraObjWrapper* aura_obj,
+               ui::AXEvent event_type) override;
 
  protected:
   AutomationManagerAura();