Expose Service Describer in Dart mojo package

mojo/dart/packages/mojo_services/lib/mojo/ui/views.mojom.dart

Index: mojo/dart/packages/mojo_services/lib/mojo/ui/views.mojom.dart
diff --git a/mojo/dart/packages/mojo_services/lib/mojo/ui/views.mojom.dart b/mojo/dart/packages/mojo_services/lib/mojo/ui/views.mojom.dart
index d00a29a0fdea9face71187fe6022e15602bf41ec..69b466363a914a30faaf109871e86d6585565ecf 100644
--- a/mojo/dart/packages/mojo_services/lib/mojo/ui/views.mojom.dart
+++ b/mojo/dart/packages/mojo_services/lib/mojo/ui/views.mojom.dart
@@ -1205,11 +1205,14 @@ const int _ViewOwner_getTokenName = 0;
 
 
 class _ViewOwnerServiceDescription implements service_describer.ServiceDescription {
-  dynamic getTopLevelInterface([Function responseFactory]) => null;
+  dynamic getTopLevelInterface([Function responseFactory]) =>
+      responseFactory(null);
 
-  dynamic getTypeDefinition(String typeKey, [Function responseFactory]) => null;
+  dynamic getTypeDefinition(String typeKey, [Function responseFactory]) =>
+      responseFactory(null);
 
-  dynamic getAllTypeDefinitions([Function responseFactory]) => null;
+  dynamic getAllTypeDefinitions([Function responseFactory]) =>
+      responseFactory(null);
 }
 
 abstract class ViewOwner {
@@ -1421,7 +1424,7 @@ class ViewOwnerStub extends bindings.Stub {
 
   int get version => 0;
 
-  service_describer.ServiceDescription get serviceDescription =>
+  static service_describer.ServiceDescription get serviceDescription =>
     new _ViewOwnerServiceDescription();
 }
 
@@ -1431,11 +1434,14 @@ const int _View_onChildUnavailableName = 1;
 
 
 class _ViewServiceDescription implements service_describer.ServiceDescription {
-  dynamic getTopLevelInterface([Function responseFactory]) => null;
+  dynamic getTopLevelInterface([Function responseFactory]) =>
+      responseFactory(null);
 
-  dynamic getTypeDefinition(String typeKey, [Function responseFactory]) => null;
+  dynamic getTypeDefinition(String typeKey, [Function responseFactory]) =>
+      responseFactory(null);
 
-  dynamic getAllTypeDefinitions([Function responseFactory]) => null;
+  dynamic getAllTypeDefinitions([Function responseFactory]) =>
+      responseFactory(null);
 }
 
 abstract class View {
@@ -1705,7 +1711,7 @@ class ViewStub extends bindings.Stub {
 
   int get version => 0;
 
-  service_describer.ServiceDescription get serviceDescription =>
+  static service_describer.ServiceDescription get serviceDescription =>
     new _ViewServiceDescription();
 }
 
@@ -1720,11 +1726,14 @@ const int _ViewHost_layoutChildName = 6;
 
 
 class _ViewHostServiceDescription implements service_describer.ServiceDescription {
-  dynamic getTopLevelInterface([Function responseFactory]) => null;
+  dynamic getTopLevelInterface([Function responseFactory]) =>
+      responseFactory(null);
 
-  dynamic getTypeDefinition(String typeKey, [Function responseFactory]) => null;
+  dynamic getTypeDefinition(String typeKey, [Function responseFactory]) =>
+      responseFactory(null);
 
-  dynamic getAllTypeDefinitions([Function responseFactory]) => null;
+  dynamic getAllTypeDefinitions([Function responseFactory]) =>
+      responseFactory(null);
 }
 
 abstract class ViewHost {
@@ -2070,7 +2079,7 @@ class ViewHostStub extends bindings.Stub {
 
   int get version => 0;
 
-  service_describer.ServiceDescription get serviceDescription =>
+  static service_describer.ServiceDescription get serviceDescription =>
     new _ViewHostServiceDescription();
 }