Add Flex to views::BoxLayout.

athena/home/bottom_home_view.cc

 // Copyright 2014 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 "athena/home/bottom_home_view.h"
 
 #include "ui/app_list/app_list_item_list.h"
 #include "ui/app_list/app_list_model.h"
 #include "ui/app_list/app_list_view_delegate.h"
 #include "ui/app_list/views/search_box_view.h"
@@ skipping 12 matching lines @@
       views::BoxLayout::kVertical, 0, 0, 0));
 
   app_list::AppListModel* model = view_delegate->GetModel();
   app_list::AppListItemList* top_level = model->top_level_item_list();
 
   views::View* items_container = new views::View();
   AddChildView(items_container);
 
   views::BoxLayout* items_layout = new views::BoxLayout(
       views::BoxLayout::kHorizontal, 0, 0, 0);
-  items_layout->set_main_axis_alignment(
-      views::BoxLayout::MAIN_AXIS_ALIGNMENT_FILL);
+  items_layout->SetDefaultFlex(1);
   items_container->SetLayoutManager(items_layout);
   for (size_t i = 0; i < top_level->item_count(); ++i) {
     app_list::TileItemView* tile_item_view = new app_list::TileItemView();
     tile_item_view->SetAppListItem(top_level->item_at(i));
     items_container->AddChildView(tile_item_view);
   }
 
   app_list::SearchBoxView* search_box = new app_list::SearchBoxView(
       this, view_delegate);
   AddChildView(search_box);
 }
 
 BottomHomeView::~BottomHomeView() {}
 
 void BottomHomeView::QueryChanged(app_list::SearchBoxView* sender) {
   // Nothing needs to be done.
 }
 
 }  // namespace athena