Add in-process http server to the dart test scripts.

tools/test-runtime.dart

 #!/usr/bin/env 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.
 
 // TODO(ager): Get rid of this version of test.dart when we don't have
 // to worry about the special runtime checkout anymore.
 // This file is identical to test.dart with test suites in the
 // directories samples, client, compiler, and utils removed.
 
 #library("test");
 
 #import("dart:io");
 #import("testing/dart/test_runner.dart");
 #import("testing/dart/test_options.dart");
 #import("testing/dart/test_suite.dart");
+#import("testing/dart/http_server.dart");
 
 #import("../tests/co19/test_config.dart");
 #import("../runtime/tests/vm/test_config.dart");
 
 /**
  * The directories that contain test suites which follow the conventions
  * required by [StandardTestSuite]'s forDirectory constructor.
  * New test suites should follow this convention because it makes it much
  * simpler to add them to test.dart.  Existing test suites should be
  * moved to here, if possible.
@@ skipping 32 matching lines @@
     for (Map conf in configurations) {
       List settings =
           ['compiler', 'runtime', 'mode', 'arch'].map((name) => conf[name]);
       if (conf['checked']) settings.add('checked');
       output_words.add(Strings.join(settings, '_'));
     }
     print(Strings.join(output_words, ' '));
   }
 
   var configurationIterator = configurations.iterator();
-  bool enqueueConfiguration(ProcessQueue queue) {
-    if (!configurationIterator.hasNext()) {
-      return false;
-    }
+  void enqueueConfiguration(ProcessQueue queue) {
+    if (!configurationIterator.hasNext()) return;
 
     var conf = configurationIterator.next();
     if (selectors.containsKey('co19')) {
       queue.addTestSuite(new Co19TestSuite(conf));
     }
     if (conf['runtime'] == 'vm' && selectors.containsKey('vm')) {
       // vm tests contain both cc tests (added here) and dart tests (added in
       // [TEST_SUITE_DIRECTORIES]).
       queue.addTestSuite(new VMTestSuite(conf));
     }
 
     for (final testSuiteDir in TEST_SUITE_DIRECTORIES) {
       final name = testSuiteDir.filename;
       if (selectors.containsKey(name)) {
         queue.addTestSuite(
             new StandardTestSuite.forDirectory(conf, testSuiteDir));
       }
     }
-
-    return true;
   }
 
+  // Start global http server that serves the entire dart repo.
+  // The http server is available on localhost:9876 for any
+  // test that needs to load resources from the repo over http.
+  startHttpServer('127.0.0.1', 9876);
+
   // Start process queue.
-  var queue = new ProcessQueue(maxProcesses,
-                               progressIndicator,
-                               startTime,
-                               printTiming,
-                               enqueueConfiguration,
-                               verbose,
-                               listTests);
+  new ProcessQueue(
+      maxProcesses,
+      progressIndicator,
+      startTime,
+      printTiming,
+      enqueueConfiguration,
+      () => terminateHttpServer(),
+      verbose,
+      listTests);
 }