Interactive autofill: Adds footnote view to accept legal documents in the UI.

ui/views/window/dialog_client_view.h

Index: ui/views/window/dialog_client_view.h
diff --git a/ui/views/window/dialog_client_view.h b/ui/views/window/dialog_client_view.h
index c8136d40267acd2b15efac423d30afe8dc6d765d..e5cd49df8fd2137dd5a94173ab68499aef8791c4 100644
--- a/ui/views/window/dialog_client_view.h
+++ b/ui/views/window/dialog_client_view.h
@@ -119,9 +119,9 @@ class VIEWS_EXPORT DialogClientView : public ClientView,
   // and the spacing between bottom of buttons to end of the dialog.
   int GetDialogButtonsAreaHeight() const;
 
-  // Returns the preferred height of |footnote_view_|, or 0 if that view is
-  // NULL.
-  int GetFootnoteViewHeight() const;
+  // Returns the size of |footnote_view_|. If |footnote_view_| is NULL or
+  // !visible(), gfx::Size() will be returned.
+  gfx::Size GetFootnoteSize() const;
 
   // Position and size various sub-views.
   void LayoutDialogButtons();