Revert "Fix observatory tests broken by running dartfmt."

runtime/observatory/tests/observatory_ui/mocks/repositories/class.dart

Index: runtime/observatory/tests/observatory_ui/mocks/repositories/class.dart
diff --git a/runtime/observatory/tests/observatory_ui/mocks/repositories/class.dart b/runtime/observatory/tests/observatory_ui/mocks/repositories/class.dart
index b798fca31d104a5dcf1cc8f16efd70dbb50b8b40..debb14c229a4818363eaff55e814ae9c7544994f 100644
--- a/runtime/observatory/tests/observatory_ui/mocks/repositories/class.dart
+++ b/runtime/observatory/tests/observatory_ui/mocks/repositories/class.dart
@@ -5,27 +5,26 @@
 part of mocks;
 
 typedef Future<M.Class> ClassRepositoryMockObjectCallback(M.Isolate isolate);
-typedef Future<M.Class> ClassRepositoryMockGetterCallback(
-    M.Isolate isolate, String id);
+typedef Future<M.Class>
+        ClassRepositoryMockGetterCallback(M.Isolate isolate, String id);
 
 class ClassRepositoryMock implements M.ClassRepository {
   final ClassRepositoryMockObjectCallback _object;
   final ClassRepositoryMockGetterCallback _get;
 
-  ClassRepositoryMock(
-      {ClassRepositoryMockObjectCallback object,
-      ClassRepositoryMockGetterCallback getter})
-      : _object = object,
-        _get = getter;
+  ClassRepositoryMock({ClassRepositoryMockObjectCallback object,
+                       ClassRepositoryMockGetterCallback getter})
+    : _object = object,
+      _get = getter;
 
-  Future<M.Class> getObject(M.IsolateRef i) {
+  Future<M.Class> getObject(M.IsolateRef i){
     if (_object != null) {
       return _object(i);
     }
     return new Future.value(null);
   }
 
-  Future<M.Class> get(M.IsolateRef i, String id) {
+  Future<M.Class> get(M.IsolateRef i, String id){
     if (_get != null) {
       return _get(i, id);
     }