[ash-md] Updates ash shelf tooltips to MD

ui/views/bubble/bubble_dialog_delegate.cc

Index: ui/views/bubble/bubble_dialog_delegate.cc
diff --git a/ui/views/bubble/bubble_dialog_delegate.cc b/ui/views/bubble/bubble_dialog_delegate.cc
index 066626b81daf97ab94b83a6e1d32b373101c0e3e..60c79a91de2bda24927fe7f4db8e7c9d74b0f57e 100644
--- a/ui/views/bubble/bubble_dialog_delegate.cc
+++ b/ui/views/bubble/bubble_dialog_delegate.cc
@@ -189,6 +189,11 @@ void BubbleDialogDelegateView::SetArrowPaintType(
   SizeToContents();
 }
 
+void BubbleDialogDelegateView::SetBorderInteriorThickness(int thickness) {
+  GetBubbleFrameView()->bubble_border()->SetBorderInteriorThickness(thickness);
+  SizeToContents();
+}
+
 void BubbleDialogDelegateView::OnAnchorBoundsChanged() {
   SizeToContents();
 }