Uses child views in Autofill Popup so we can trigger

chrome/browser/ui/autofill/autofill_popup_controller_impl.cc

Index: chrome/browser/ui/autofill/autofill_popup_controller_impl.cc
diff --git a/chrome/browser/ui/autofill/autofill_popup_controller_impl.cc b/chrome/browser/ui/autofill/autofill_popup_controller_impl.cc
index 487248fba6fdda38fb06cfa215aecb70cb0b4acf..a2217c0d89cf9d46ccacd24dd93eba685d04e618 100644
--- a/chrome/browser/ui/autofill/autofill_popup_controller_impl.cc
+++ b/chrome/browser/ui/autofill/autofill_popup_controller_impl.cc
@@ -17,6 +17,7 @@
 #include "components/autofill/core/browser/popup_item_ids.h"
 #include "components/autofill/core/browser/suggestion.h"
 #include "content/public/browser/native_web_keyboard_event.h"
+#include "ui/accessibility/ax_enums.h"
 #include "ui/events/event.h"
 #include "ui/gfx/canvas.h"
 #include "ui/gfx/text_elider.h"
@@ -401,7 +402,9 @@ void AutofillPopupControllerImpl::SetSelectedLine(int selected_line) {
   if (selected_line != kNoSelection) {
     InvalidateRow(selected_line);
 
-    if (!CanAccept(suggestions_[selected_line].frontend_id))
+    if (CanAccept(suggestions_[selected_line].frontend_id))
+      NotifyAccessibilityEventForRow(ui::AX_EVENT_SELECTION, selected_line);
+    else
       selected_line = kNoSelection;
   }
 
@@ -487,11 +490,19 @@ void AutofillPopupControllerImpl::ShowView() {
 }
 
 void AutofillPopupControllerImpl::InvalidateRow(size_t row) {
-  DCHECK(0 <= row);
-  DCHECK(row < suggestions_.size());
+  DCHECK_GE(row, static_cast<size_t>(0));
+  DCHECK_LT(row, suggestions_.size());
   view_->InvalidateRow(row);
 }
 
+void AutofillPopupControllerImpl::NotifyAccessibilityEventForRow(
+    ui::AXEvent event_type,
+    size_t row) {
+  CHECK_GE(row, static_cast<size_t>(0));
+  CHECK_LT(row, suggestions_.size());
+  view_->NotifyAccessibilityEventForRow(event_type, row);
+}
+
 WeakPtr<AutofillPopupControllerImpl> AutofillPopupControllerImpl::GetWeakPtr() {
   return weak_ptr_factory_.GetWeakPtr();
 }