Update Chrome Upstream flow to reflect new UI mocks

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 4f4d94647a9d20d963fecd7794bb06b640751441..52b952edd1b1f98b65103dac832f47d4bdb8c7db 100644
--- a/ui/views/bubble/bubble_frame_view.h
+++ b/ui/views/bubble/bubble_frame_view.h
@@ -96,8 +96,12 @@ class VIEWS_EXPORT BubbleFrameView : public NonClientFrameView,
   gfx::Rect GetCloseButtonMirroredBounds() const;
 
  private:
+  class FootnoteContainerView;
   FRIEND_TEST_ALL_PREFIXES(BubbleFrameViewTest, GetBoundsForClientView);
   FRIEND_TEST_ALL_PREFIXES(BubbleFrameViewTest, RemoveFootnoteView);
+  FRIEND_TEST_ALL_PREFIXES(
+      BubbleFrameViewTest,
+      FootnoteContainerViewShouldMatchVisibilityOfFirstChild);
   FRIEND_TEST_ALL_PREFIXES(BubbleDelegateTest, CloseReasons);
   FRIEND_TEST_ALL_PREFIXES(BubbleDialogDelegateTest, CloseMethods);
 
@@ -130,7 +134,7 @@ class VIEWS_EXPORT BubbleFrameView : public NonClientFrameView,
   Button* close_;
 
   // A view to contain the footnote view, if it exists.
-  View* footnote_container_;
+  FootnoteContainerView* footnote_container_;
 
   // Whether the close button was clicked.
   bool close_button_clicked_;