Expose Service Describer in Dart mojo package

mojo/dart/packages/mojo_services/lib/keyboard/keyboard.mojom.dart

Index: mojo/dart/packages/mojo_services/lib/keyboard/keyboard.mojom.dart
diff --git a/mojo/dart/packages/mojo_services/lib/keyboard/keyboard.mojom.dart b/mojo/dart/packages/mojo_services/lib/keyboard/keyboard.mojom.dart
index 0987233bb25ee225c0cdcbe6d5509229afb69768..d92be4260e189ac5ce2f61426c9b6e5f9d8a8ff7 100644
--- a/mojo/dart/packages/mojo_services/lib/keyboard/keyboard.mojom.dart
+++ b/mojo/dart/packages/mojo_services/lib/keyboard/keyboard.mojom.dart
@@ -1485,11 +1485,14 @@ const int _KeyboardClient_submitName = 7;
 
 
 class _KeyboardClientServiceDescription 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 KeyboardClient {
@@ -1770,7 +1773,7 @@ class KeyboardClientStub extends bindings.Stub {
 
   int get version => 0;
 
-  service_describer.ServiceDescription get serviceDescription =>
+  static service_describer.ServiceDescription get serviceDescription =>
     new _KeyboardClientServiceDescription();
 }
 
@@ -1783,11 +1786,14 @@ const int _KeyboardService_setSelectionName = 4;
 
 
 class _KeyboardServiceServiceDescription 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 KeyboardService {
@@ -2018,7 +2024,7 @@ class KeyboardServiceStub extends bindings.Stub {
 
   int get version => 0;
 
-  service_describer.ServiceDescription get serviceDescription =>
+  static service_describer.ServiceDescription get serviceDescription =>
     new _KeyboardServiceServiceDescription();
 }
 
@@ -2027,11 +2033,14 @@ const int _KeyboardServiceFactory_createKeyboardServiceName = 0;
 
 
 class _KeyboardServiceFactoryServiceDescription 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 KeyboardServiceFactory {
@@ -2203,7 +2212,7 @@ class KeyboardServiceFactoryStub extends bindings.Stub {
 
   int get version => 0;
 
-  service_describer.ServiceDescription get serviceDescription =>
+  static service_describer.ServiceDescription get serviceDescription =>
     new _KeyboardServiceFactoryServiceDescription();
 }