Format samples and samples-dev directories.

samples-dev/swarm/test/swarm_ui_lib/layout/grid_layout_demo.dart

 // Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 part of layout_tests;
 
 /**
  * An app for testing the grid layout system.
  */
 
@@ skipping 48 matching lines @@
       border-radius: 8px;
       font-family:monospace;
       font-size:16px;
       line-height:20px;
     }
     ''');
 }
 
 void _addColorStyles() {
   final grid = document.body.querySelector('#grid');
-  final colors = const [ 'darkred', 'darkorange', 'darkgoldenrod',
-                         'darkgreen', 'darkblue', 'darkviolet'];
+  final colors = const [
+    'darkred',
+    'darkorange',
+    'darkgoldenrod',
+    'darkgreen',
+    'darkblue',
+    'darkviolet'
+  ];
   int c = 0;
   var node = grid.children[0];
   while (node != null) {
     if (node.id != '') {
       node.style.cssText += "color:" + colors[c++];
     }
     node = node.nextElementSibling;
   }
 }
 
 class MockCompositeView extends CompositeView {
-   MockCompositeView(String id, Map styles, List childViews)
-    : super('') {
+  MockCompositeView(String id, Map styles, List childViews) : super('') {
     node.id = id;
     CollectionUtils.copyMap(customStyle, styles);
 
     for (final v in childViews) {
       addChild(v);
     }
   }
 }
 
 class MockView extends View {
   MockView(String id, Map styles)
-      : super.fromNode(new Element.html(
-          '<div class="grid-item">MockView-$id</div>')) {
+      : super.fromNode(
+            new Element.html('<div class="grid-item">MockView-$id</div>')) {
     node.id = id;
     CollectionUtils.copyMap(customStyle, styles);
     // TODO(jmesserly): this is needed to get horizontal content-sizing to work
     node.style.display = 'inline-block';
   }
 }
 
-
 void printMetrics(String example) {
   final node = document.body.querySelector('#grid');
   String exampleId = example.split(' ')[0];
   final sb = new StringBuffer();
   sb.write("test('Spec Example $exampleId', () {\n");
   sb.write("  verifyExample('$example', {\n");
   final children = node.children;
 
   scheduleMicrotask(() {
     for (int i = 0; i < children.length; i++) {
       _appendMetrics(sb, children[i], '    ');
     }
     sb.write('  });\n');
     sb.write('});\n\n');
     window.console.log(sb.toString());
   });
 }
 
 void _appendMetrics(StringBuffer sb, Element node, [String indent = '']) {
   String id = node.id;
   num left = node.offsetLeft, top = node.offsetTop;
   num width = node.offsetWidth, height = node.offsetHeight;
   sb.write("${indent}'$id': [$left, $top, $width, $height],\n");
 }