Hide icons in message center on lock screen

ui/views/layout/grid_layout.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/views/layout/grid_layout.h"
 
 #include <algorithm>
 
 #include "base/logging.h"
 #include "base/macros.h"
@@ skipping 666 matching lines @@
   }
   return nullptr;
 }
 
 void GridLayout::StartRowWithPadding(float vertical_resize, int column_set_id,
                                      float padding_resize, int padding) {
   AddPaddingRow(padding_resize, padding);
   StartRow(vertical_resize, column_set_id);
 }
 
-void GridLayout::StartRow(float vertical_resize, int column_set_id) {
+void GridLayout::StartRow(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) {
   AddRow(base::MakeUnique<Row>(pixel_count, vertical_resize, nullptr));
 }
 
 void GridLayout::SkipColumns(int col_count) {
   DCHECK(col_count > 0);
   next_column_ += col_count;
   DCHECK(current_row_col_set_ &&
@@ skipping 316 matching lines @@
 
 ColumnSet* GridLayout::GetLastValidColumnSet() {
   for (int i = current_row_ - 1; i >= 0; --i) {
     if (rows_[i]->column_set())
       return rows_[i]->column_set();
   }
   return nullptr;
 }
 
 }  // namespace views