Uses child views in Autofill Popup so we can trigger

chrome/browser/ui/autofill/autofill_popup_controller_impl.h

Index: chrome/browser/ui/autofill/autofill_popup_controller_impl.h
diff --git a/chrome/browser/ui/autofill/autofill_popup_controller_impl.h b/chrome/browser/ui/autofill/autofill_popup_controller_impl.h
index e3332b51f00d49f50a74b5c06df29046052c63ae..bd851883b43416e49cba07178e23ea9d8309cb72 100644
--- a/chrome/browser/ui/autofill/autofill_popup_controller_impl.h
+++ b/chrome/browser/ui/autofill/autofill_popup_controller_impl.h
@@ -15,6 +15,7 @@
 #include "chrome/browser/ui/autofill/autofill_popup_controller.h"
 #include "chrome/browser/ui/autofill/autofill_popup_layout_model.h"
 #include "chrome/browser/ui/autofill/popup_controller_common.h"
+#include "ui/accessibility/ax_enums.h"
 #include "ui/gfx/geometry/rect.h"
 #include "ui/gfx/geometry/rect_f.h"
 #include "ui/native_theme/native_theme.h"
@@ -129,6 +130,8 @@ class AutofillPopupControllerImpl : public AutofillPopupController {
   // |view_| pass throughs (virtual for testing).
   virtual void ShowView();
   virtual void InvalidateRow(size_t row);
+  virtual void NotifyAccessibilityEventForRow(ui::AXEvent event_type,
+                                              size_t row);
 
   base::WeakPtr<AutofillPopupControllerImpl> GetWeakPtr();