Hide icons in message center on lock screen

ui/views/layout/grid_layout.cc

Index: ui/views/layout/grid_layout.cc
diff --git a/ui/views/layout/grid_layout.cc b/ui/views/layout/grid_layout.cc
index b45f1ca474dbdf7a17a9fd3acb1348b99213e9d2..9f68476957addcbf54d146f1dac32a4e398b97a9 100644
--- a/ui/views/layout/grid_layout.cc
+++ b/ui/views/layout/grid_layout.cc
@@ -685,9 +685,16 @@ void GridLayout::StartRowWithPadding(float vertical_resize, int column_set_id,
 }
 
 void GridLayout::StartRow(float vertical_resize, int column_set_id) {
+  StartRowWithHeight(vertical_resize, column_set_id, 0);
+}
+
+void GridLayout::StartRowWithHeight(float vertical_resize,
+                                    int column_set_id,
+                                    int height) {
+  DCHECK_GE(height, 0);
   ColumnSet* column_set = GetColumnSet(column_set_id);
   DCHECK(column_set);
-  AddRow(base::MakeUnique<Row>(0, vertical_resize, column_set));
+  AddRow(base::MakeUnique<Row>(height, vertical_resize, column_set));
 }
 
 void GridLayout::AddPaddingRow(float vertical_resize, int pixel_count) {