Uses child views in Autofill Popup so we can trigger

chrome/browser/ui/cocoa/autofill/autofill_popup_view_bridge.mm

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #import <Cocoa/Cocoa.h>
 
 #include "chrome/browser/ui/cocoa/autofill/autofill_popup_view_bridge.h"
 
 #include "base/logging.h"
 #include "chrome/browser/ui/autofill/autofill_popup_controller.h"
@@ skipping 27 matching lines @@
 }
 
 void AutofillPopupViewBridge::Hide() {
   delete this;
 }
 
 void AutofillPopupViewBridge::Show() {
   [view_ showPopup];
 }
 
-void AutofillPopupViewBridge::InvalidateRow(size_t row) {
-  [view_ invalidateRow:row];
+void AutofillPopupViewBridge::OnSelectedRowChanged(
+    base::Optional<size_t> previous_row_selection,
+    base::Optional<size_t> current_row_selection) {
+  if (previous_row_selection &&
+      previous_row_selection < controller_->GetLineCount()) {
+    [view_ invalidateRow:*previous_row_selection];
+  }
+
+  if (current_row_selection) {
+    [view_ invalidateRow:*current_row_selection];
+  }
 }
 
-void AutofillPopupViewBridge::UpdateBoundsAndRedrawPopup() {
+void AutofillPopupViewBridge::OnSuggestionsChanged() {
   [view_ updateBoundsAndRedrawPopup];
 }
 
 AutofillPopupView* AutofillPopupView::Create(
     AutofillPopupController* controller) {
   return new AutofillPopupViewBridge(controller);
 }
 
 }  // namespace autofill