Make the status bar translucent

sky/framework/components/drawer_header.dart

 // Copyright 2015 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.
 
 import '../fn.dart';
 import '../theme/colors.dart';
+import '../theme/view-configuration.dart';
 
 class DrawerHeader extends Component {
   static final Style _style = new Style('''
     display: flex;
     flex-direction: column;
-    height: 140px;
+    height: ${140 + kStatusBarHeight}px;
     -webkit-user-select: none;
     background-color: ${BlueGrey[50]};
     border-bottom: 1px solid #D1D9E1;
     padding-bottom: 7px;
     margin-bottom: 8px;'''
   );
 
   static final Style _spacerStyle = new Style('''
     flex: 1'''
   );
@@ skipping 18 matching lines @@
         ),
         new Container(
           key: 'Label',
           style: _labelStyle,
           children: children
         )
       ]
     );
   }
 }