Fix observatory tests broken by running dartfmt. Temporarily reverted formatting for evaluate_activ…

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

Index: runtime/observatory/tests/observatory_ui/mocks/repositories/library.dart
diff --git a/runtime/observatory/tests/observatory_ui/mocks/repositories/library.dart b/runtime/observatory/tests/observatory_ui/mocks/repositories/library.dart
index 1d0f487b8b1eeb333d6c57806df25d78b3a9daa8..9dc51b17237fe918503cb50934d2f1213ce481f1 100644
--- a/runtime/observatory/tests/observatory_ui/mocks/repositories/library.dart
+++ b/runtime/observatory/tests/observatory_ui/mocks/repositories/library.dart
@@ -4,16 +4,15 @@
 
 part of mocks;
 
-typedef Future<M.Library> LibraryRepositoryMockCallback(M.IsolateRef isolate,
-                                                        String id);
+typedef Future<M.Library> LibraryRepositoryMockCallback(
+    M.IsolateRef isolate, String id);
 
 class LibraryRepositoryMock implements M.LibraryRepository {
   final LibraryRepositoryMockCallback _get;
 
-  LibraryRepositoryMock({LibraryRepositoryMockCallback getter})
-    : _get = getter;
+  LibraryRepositoryMock({LibraryRepositoryMockCallback getter}) : _get = getter;
 
-  Future<M.Library> get(M.IsolateRef isolate, String id){
+  Future<M.Library> get(M.IsolateRef isolate, String id) {
     if (_get != null) {
       return _get(isolate, id);
     }