Create Bookmark Footnote desktop iOS promotion

ui/views/bubble/bubble_frame_view.h

Index: ui/views/bubble/bubble_frame_view.h
diff --git a/ui/views/bubble/bubble_frame_view.h b/ui/views/bubble/bubble_frame_view.h
index e8784d17c9189ac7d612d06a1b79cff1406a389b..a88a425cee3c2e8a326e73412fd517fd8143fa73 100644
--- a/ui/views/bubble/bubble_frame_view.h
+++ b/ui/views/bubble/bubble_frame_view.h
@@ -63,6 +63,8 @@ class VIEWS_EXPORT BubbleFrameView : public NonClientFrameView,
   void PaintChildren(const ui::PaintContext& context) override;
   void OnThemeChanged() override;
   void OnNativeThemeChanged(const ui::NativeTheme* theme) override;
+  void ViewHierarchyChanged(
+      const ViewHierarchyChangedDetails& details) override;
 
   // ButtonListener:
   void ButtonPressed(Button* sender, const ui::Event& event) override;
@@ -95,6 +97,7 @@ class VIEWS_EXPORT BubbleFrameView : public NonClientFrameView,
 
  private:
   FRIEND_TEST_ALL_PREFIXES(BubbleFrameViewTest, GetBoundsForClientView);
+  FRIEND_TEST_ALL_PREFIXES(BubbleFrameViewTest, RemoveFootnoteView);
   FRIEND_TEST_ALL_PREFIXES(BubbleDelegateTest, CloseReasons);
   FRIEND_TEST_ALL_PREFIXES(BubbleDialogDelegateTest, CloseMethods);