Stop running pub get at gclient sync time and fix build bugs

mojo/public/dart/third_party/unittest/lib/src/test_environment.dart

Index: mojo/public/dart/third_party/unittest/lib/src/test_environment.dart
diff --git a/mojo/public/dart/third_party/unittest/lib/src/test_environment.dart b/mojo/public/dart/third_party/unittest/lib/src/test_environment.dart
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+// Copyright (c) 2014, 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 unittest.test_environment;
+
+import 'dart:async';
+
+import 'configuration.dart';
+import 'group_context.dart';
+import 'internal_test_case.dart';
+
+/// The default unittest environment.
+final _defaultEnvironment = new TestEnvironment();
+
+/// The current unittest environment.
+TestEnvironment get environment {
+  var environment = Zone.current[#unittest.environment];
+  return environment == null ? _defaultEnvironment : environment;
+}
+
+// The current environment's configuration.
+Configuration get config => environment.config;
+
+/// Encapsulates the state of the test environment.
+///
+/// This is used by the [withTestEnvironment] method to support multiple
+/// invocations of the unittest library within the same application
+/// instance.
+class TestEnvironment {
+  /// The environment's configuration.
+  Configuration config;
+
+  /// The top-level group context.
+  ///
+  /// We use a 'dummy' context for the top level to eliminate null checks when
+  /// querying the context. This allows us to easily support top-level
+  /// [setUp]/[tearDown] functions as well.
+  final rootContext = new GroupContext.root();
+
+  /// The current group context.
+  GroupContext currentContext;
+
+  /// The [currentTestCaseIndex] represents the index of the currently running
+  /// test case.
+  ///
+  /// If this is -1 it implies the test system is not running.
+  /// It will be set to [number of test cases] as a short-lived state flagging
+  /// that the last test has completed.
+  int currentTestCaseIndex = -1;
+
+  /// The [initialized] variable specifies whether the framework
+  /// has been initialized.
+  bool initialized = false;
+
+  /// The time since we last gave asynchronous code a chance to be scheduled.
+  int lastBreath = new DateTime.now().millisecondsSinceEpoch;
+
+  /// The number of [solo_group]s deep we are currently.
+  int soloNestingLevel = 0;
+
+  /// Whether we've seen a [solo_test].
+  bool soloTestSeen = false;
+
+  /// The list of test cases to run.
+  final testCases = new List<InternalTestCase>();
+
+  /// The error message that is printed in the test summary.
+  String uncaughtErrorMessage;
+
+  TestEnvironment() {
+    currentContext = rootContext;
+  }
+}