Make the fuchsia mojo/public repo the source of truth.

mojo/dart/packages/_mojo_for_test_only/lib/sample/sample_factory.mojom.dart

 // WARNING: DO NOT EDIT. This file was generated by a program.
 // See $MOJO_SDK/tools/bindings/mojom_bindings_generator.py.
 
 library sample_factory_mojom;
 import 'dart:async';
 import 'dart:collection';
 import 'dart:convert';
 import 'dart:io';
 import 'dart:typed_data';
 import 'package:mojo/bindings.dart' as bindings;
@@ skipping 1557 matching lines @@
 
 Map<String, mojom_types.UserDefinedType> getAllMojomTypeDefinitions() {
   return getRuntimeTypeInfo().typeMap;
 }
 
 var _runtimeTypeInfo;
 mojom_types.RuntimeTypeInfo  _initRuntimeTypeInfo() {
   // serializedRuntimeTypeInfo contains the bytes of the Mojo serialization of
   // a mojom_types.RuntimeTypeInfo struct describing the Mojom types in this
   // file. The string contains the base64 encoding of the gzip-compressed bytes.
-  var serializedRuntimeTypeInfo = "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";
+  var serializedRuntimeTypeInfo = "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";
 
   // Deserialize RuntimeTypeInfo
   var bytes = BASE64.decode(serializedRuntimeTypeInfo);
   var unzippedBytes = new ZLibDecoder().convert(bytes);
   var bdata = new ByteData.view(unzippedBytes.buffer);
   var message = new bindings.Message(bdata, null, unzippedBytes.length, 0);
   _runtimeTypeInfo = mojom_types.RuntimeTypeInfo.deserialize(message);
   sample_import_mojom.getAllMojomTypeDefinitions()
       .forEach((String s, mojom_types.UserDefinedType udt) {
           _runtimeTypeInfo.typeMap[s] = udt;
       });
 
   return _runtimeTypeInfo;
 }