Move browser tests that require installation into their own files.

test/utils.dart

 // Copyright (c) 2015, 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.
 
 library test.test.utils;
 
 import 'dart:async';
 import 'dart:collection';
 
 import 'package:test/src/backend/invoker.dart';
@@ skipping 209 matching lines @@
 /// Returns a local [LiveTest] that runs [body].
 LiveTest createTest(body()) {
   var test = new LocalTest("test", new Metadata(), body);
   var suite = new Suite([test]);
   return test.load(suite);
 }
 
 /// Runs [body] as a test.
 ///
 /// Once it completes, returns the [LiveTest] used to run it.
-Future<LiveTest> runTest(body()) {
+Future<LiveTest> runTestBody(body()) {
   var liveTest = createTest(body);
   return liveTest.run().then((_) => liveTest);
 }
 
 /// Asserts that [liveTest] has completed and passed.
 ///
 /// If the test had any errors, they're surfaced nicely into the outer test.
 void expectTestPassed(LiveTest liveTest) {
   // Since the test is expected to pass, we forward any current or future errors
   // to the outer test, because they're definitely unexpected.
@@ skipping 32 matching lines @@
     });
   });
 
   return liveTest.run().then((_) {
     expectTestPassed(liveTest);
     // Ensure that the outer test doesn't complete until the inner future
     // completes.
     return future;
   });
 }