Added support for layout render tests. These use expected values for the text render output from Du…

utils/testrunner/configuration.dart

 // Copyright (c) 2012, 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.
 
 /**
  * The command line and other arguments passed to the test runner are
  * gathered into a global [Configuration] instance that controls the
  * execution. For details on the various options here see
  * [getOptionParser].
  */
@@ skipping 16 matching lines @@
   final List excludeFilter;
   final int timeout;
   final String runtime;
   final bool checkedMode;
   final bool keepTests;
   final bool stopOnFailure;
   final int maxTasks;
   final String outputStream;
   final String logStream;
   final String tempDir;
+  final bool generateRenders;
   String dart2jsPath;
   String drtPath;
   String dartPath;
   bool filtering;
 
   Configuration(ArgParser parser, ArgResults options) :
     unittestPath = makePathAbsolute(options['unittest']),
     runIsolated = options['isolate'],
     runInBrowser = (options['runtime'] != 'vm'),
     verbose = (options['log'] != 'none' && !options['list-groups']),
@@ skipping 11 matching lines @@
     excludeFilter = options['exclude'],
     timeout = parseInt(options['timeout']),
     runtime = options['runtime'],
     checkedMode = options['checked'],
     keepTests = (options['keep-files'] &&
             !(options['list-groups'] || options['list-tests'])),
     stopOnFailure = options['stop-on-failure'],
     maxTasks = parseInt(options['tasks']),
     outputStream = options['out'],
     logStream = options['log'],
-    tempDir = options['tempdir'] {
+    tempDir = options['tempdir'],
+    generateRenders = options['generate-renders'] {
     filtering = (includeFilter.length > 0 || excludeFilter.length > 0);
     var dartsdk = options['dartsdk'];
     var pathSep = Platform.pathSeparator;
 
     if (dartsdk == null ||
         parser.getDefault('dart2js') != options['dart2js']) {
       dart2jsPath = options['dart2js'];
     } else {
       dart2jsPath = '$dartsdk${pathSep}dart-sdk${pathSep}bin${pathSep}dart2js';
     }
 
     if (dartsdk == null ||
         parser.getDefault('dart') != options['dart']) {
       dartPath = options['dart'];
     } else {
       dartPath = '$dartsdk${pathSep}dart-sdk${pathSep}bin${pathSep}dart';
     }
 
     if (dartsdk == null ||
         parser.getDefault('drt') != options['drt']) {
       drtPath = options['drt'];
     } else {
       drtPath = '$dartsdk${pathSep}chromium${pathSep}DumpRenderTree';
     }
   }
 }