Roll to pickup pool changes

packages/barback/example/lazy_transformer/lib/transformer.dart

Index: packages/barback/example/lazy_transformer/lib/transformer.dart
diff --git a/packages/barback/example/lazy_transformer/lib/transformer.dart b/packages/barback/example/lazy_transformer/lib/transformer.dart
index aaee46f588324a83351ed58f4b73c92977f92c61..02bfd8a701710c5b9c885252e5c99776ae683579 100644
--- a/packages/barback/example/lazy_transformer/lib/transformer.dart
+++ b/packages/barback/example/lazy_transformer/lib/transformer.dart
@@ -7,14 +7,13 @@ import 'package:barback/barback.dart';
 import 'dart:async';
 
 class CodedMessageConverter extends Transformer implements LazyTransformer {
-
   // A constructor named "asPlugin" is required. It can be empty, but
   // it must be present.
   CodedMessageConverter.asPlugin();
 
   Future<bool> isPrimary(AssetId id) async => id.extension == '.txt';
 
-  Future declareOutputs(DeclaringTransform transform) {
+  void declareOutputs(DeclaringTransform transform) {
     transform.declareOutput(transform.primaryId.changeExtension('.shhhhh'));
   }
 
@@ -33,10 +32,15 @@ class CodedMessageConverter extends Transformer implements LazyTransformer {
 
   rot13(var ch) {
     var c = ch.codeUnitAt(0);
-    if (c >= 'a'.codeUnitAt(0) && c <= 'm'.codeUnitAt(0)) c += 13;
-    else if (c >= 'A'.codeUnitAt(0) && c <= 'M'.codeUnitAt(0)) c += 13;
-    else if (c >= 'n'.codeUnitAt(0) && c <= 'z'.codeUnitAt(0)) c -= 13;
-    else if (c >= 'N'.codeUnitAt(0) && c <= 'Z'.codeUnitAt(0)) c -= 13;
+    if (c >= 'a'.codeUnitAt(0) && c <= 'm'.codeUnitAt(0)) {
+      c += 13;
+    } else if (c >= 'A'.codeUnitAt(0) && c <= 'M'.codeUnitAt(0)) {
+      c += 13;
+    } else if (c >= 'n'.codeUnitAt(0) && c <= 'z'.codeUnitAt(0)) {
+      c -= 13;
+    } else if (c >= 'N'.codeUnitAt(0) && c <= 'Z'.codeUnitAt(0)) {
+      c -= 13;
+    }
     return new String.fromCharCode(c);
   }
 }