[ash-md] Adjusts layout of lists with sticky header rows to match specs

ash/common/system/tray/tri_view.cc

Index: ash/common/system/tray/tri_view.cc
diff --git a/ash/common/system/tray/tri_view.cc b/ash/common/system/tray/tri_view.cc
index ea2ca9327d8fc3a902f91dbca1a7114bd81c77b9..0c857ebd0f7cba0261d17f6e8c318821f8700ec6 100644
--- a/ash/common/system/tray/tri_view.cc
+++ b/ash/common/system/tray/tri_view.cc
@@ -126,6 +126,10 @@ void TriView::ViewHierarchyChanged(
   }
 }
 
+const char* TriView::GetClassName() const {
+  return "TriView";
+}
+
 views::View* TriView::GetContainer(Container container) {
   return child_at(static_cast<int>(container));
 }