[Athena] Add status icons and system time to the centered home card

athena/home/athena_start_page_view.h

Index: athena/home/athena_start_page_view.h
diff --git a/athena/home/athena_start_page_view.h b/athena/home/athena_start_page_view.h
index cb4cca63425ca50a0bd155a93c3e494adfc05163..236ca567006c6e7b19f12b540da69c7444784b5c 100644
--- a/athena/home/athena_start_page_view.h
+++ b/athena/home/athena_start_page_view.h
@@ -45,6 +45,7 @@ class ATHENA_EXPORT AthenaStartPageView
     gfx::Rect search_box;
     gfx::Rect icons;
     gfx::Rect controls;
+    float system_info_opacity;
     float logo_opacity;
     float background_opacity;
 
@@ -76,6 +77,7 @@ class ATHENA_EXPORT AthenaStartPageView
   app_list::AppListViewDelegate* delegate_;
 
   // Views are owned through its hierarchy.
+  views::View* system_info_view_;
   views::View* app_icon_container_;
   views::View* search_box_container_;
   views::View* control_icon_container_;