a === b -> identical(a, b)

tools/testing/dart/drt_updater.dart

Index: tools/testing/dart/drt_updater.dart
diff --git a/tools/testing/dart/drt_updater.dart b/tools/testing/dart/drt_updater.dart
index 6713a88db761e889ed2adfa0aa73befa37251e80..c0482631039e40c10204ea08010fd039f43b3378 100644
--- a/tools/testing/dart/drt_updater.dart
+++ b/tools/testing/dart/drt_updater.dart
@@ -39,7 +39,7 @@ class _DartiumUpdater {
     Path testScriptPath = new Path.fromNative(TestUtils.testScriptPath);
     Path updateScriptPath = testScriptPath.directoryPath.append(script);
     List<String> command = [updateScriptPath.toNativePath()];
-    if (null !== option) {
+    if (null != option) {
       command.add(option);
     }
     return command;
@@ -66,14 +66,14 @@ _DartiumUpdater runtimeUpdater(Map configuration) {
   String runtime = configuration['runtime'];
   if (runtime == 'drt' && configuration['drt'] == '') {
     // Download the default DumpRenderTree from Google Storage.
-    if (_dumpRenderTreeUpdater === null) {
+    if (_dumpRenderTreeUpdater == null) {
       _dumpRenderTreeUpdater = new _DartiumUpdater('DumpRenderTree',
                                                    'get_archive.py', 'drt');
     }
     return _dumpRenderTreeUpdater;
   } else if (runtime == 'dartium' && configuration['dartium'] == '') {
     // Download the default Dartium from Google Storage.
-    if (_dartiumUpdater === null) {
+    if (_dartiumUpdater == null) {
       _dartiumUpdater = new _DartiumUpdater('Dartium Chrome', 'get_archive.py',
                                             'dartium');
     }