Uses child views in Autofill Popup so we can trigger

chrome/browser/ui/android/autofill/autofill_keyboard_accessory_view.h

 // 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.
 
 #ifndef CHROME_BROWSER_UI_ANDROID_AUTOFILL_AUTOFILL_KEYBOARD_ACCESSORY_VIEW_H_
 #define CHROME_BROWSER_UI_ANDROID_AUTOFILL_AUTOFILL_KEYBOARD_ACCESSORY_VIEW_H_
 
 #include <jni.h>
 #include <stddef.h>
 #include <vector>
@@ skipping 32 matching lines @@
 
   void ViewDismissed(JNIEnv* env,
                      const base::android::JavaParamRef<jobject>& obj);
 
   static bool RegisterAutofillKeyboardAccessoryView(JNIEnv* env);
 
  protected:
   // AutofillPopupView implementation.
   void Show() override;
   void Hide() override;
-  void InvalidateRow(size_t row) override;
-  void UpdateBoundsAndRedrawPopup() override;
+  void OnSelectedRowChanged(base::Optional<int> previous_row_selection,
+                            base::Optional<int> current_row_selection) override;
+  void OnSuggestionsChanged() override;
 
  private:
   ~AutofillKeyboardAccessoryView() override;
 
   AutofillPopupController* controller_;  // weak.
 
   // The index of the last item the user long-pressed (they will be shown a
   // confirmation dialog).
   int deleting_index_;
 
   // Mapping from Java list index to autofill suggestion index.
   std::vector<int> positions_;
 
   // The corresponding java object.
   base::android::ScopedJavaGlobalRef<jobject> java_object_;
 
   DISALLOW_COPY_AND_ASSIGN(AutofillKeyboardAccessoryView);
 };
 
 }  // namespace autofill
 
 #endif  // CHROME_BROWSER_UI_ANDROID_AUTOFILL_AUTOFILL_KEYBOARD_ACCESSORY_VIEW_H_