Revert "Fix observatory tests broken by running dartfmt."

runtime/observatory/tests/observatory_ui/heap_snapshot/element_test.dart

 // Copyright (c) 2016, 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.
 
 import 'dart:html';
 import 'dart:async';
 import 'package:unittest/unittest.dart';
 import 'package:observatory/models.dart' as M;
 import 'package:observatory/src/elements/containers/virtual_tree.dart';
 import 'package:observatory/src/elements/heap_snapshot.dart';
 import '../mocks.dart';
 
 main() {
   HeapSnapshotElement.tag.ensureRegistration();
 
   final tTag = VirtualTreeElement.tag.name;
 
   const vm = const VMMock();
   const isolate = const IsolateRefMock();
   final events = new EventRepositoryMock();
   final notifs = new NotificationRepositoryMock();
   final snapshots = new HeapSnapshotRepositoryMock();
   final instances = new InstanceRepositoryMock();
   test('instantiation', () {
-    final e = new HeapSnapshotElement(
-        vm, isolate, events, notifs, snapshots, instances);
+    final e = new HeapSnapshotElement(vm, isolate, events, notifs, snapshots,
+                                      instances);
     expect(e, isNotNull, reason: 'element correctly created');
   });
   test('elements created', () async {
-    final controller =
-        new StreamController<M.HeapSnapshotLoadingProgressEvent>.broadcast();
-    final snapshots =
-        new HeapSnapshotRepositoryMock(getter: (M.IsolateRef i, bool gc) {
-      expect(i, equals(isolate));
-      expect(gc, isFalse);
-      return controller.stream;
-    });
-    final e = new HeapSnapshotElement(
-        vm, isolate, events, notifs, snapshots, instances);
+    final controller
+        = new StreamController<M.HeapSnapshotLoadingProgressEvent>.broadcast();
+    final snapshots = new HeapSnapshotRepositoryMock(
+      getter: (M.IsolateRef i, bool gc) {
+        expect(i, equals(isolate));
+        expect(gc, isFalse);
+        return controller.stream;
+      }
+    );
+    final e = new HeapSnapshotElement(vm, isolate, events, notifs, snapshots,
+                                      instances);
     document.body.append(e);
     await e.onRendered.first;
     expect(e.children.length, isNonZero, reason: 'has elements');
     expect(e.querySelectorAll(tTag).length, isZero);
     controller.add(const HeapSnapshotLoadingProgressEventMock(
-        progress: const HeapSnapshotLoadingProgressMock(
-            status: M.HeapSnapshotLoadingStatus.fetching)));
+      progress: const HeapSnapshotLoadingProgressMock(
+        status: M.HeapSnapshotLoadingStatus.fetching
+      )
+    ));
     await e.onRendered.first;
     expect(e.querySelectorAll(tTag).length, isZero);
     controller.add(const HeapSnapshotLoadingProgressEventMock(
-        progress: const HeapSnapshotLoadingProgressMock(
-            status: M.HeapSnapshotLoadingStatus.loading)));
+      progress: const HeapSnapshotLoadingProgressMock(
+        status: M.HeapSnapshotLoadingStatus.loading
+      )
+    ));
     controller.add(new HeapSnapshotLoadingProgressEventMock(
-        progress: new HeapSnapshotLoadingProgressMock(
-            status: M.HeapSnapshotLoadingStatus.loaded,
-            snapshot: new HeapSnapshotMock(timestamp: new DateTime.now()))));
+      progress: new HeapSnapshotLoadingProgressMock(
+        status: M.HeapSnapshotLoadingStatus.loaded,
+        snapshot: new HeapSnapshotMock(timestamp: new DateTime.now())
+      )
+    ));
     controller.close();
     await e.onRendered.first;
     expect(e.querySelectorAll(tTag).length, equals(1));
     e.remove();
     await e.onRendered.first;
     expect(e.children.length, isZero, reason: 'is empty');
   });
 }