Allow for embedder provided service request handlers

runtime/vm/dart_api_impl.cc

Index: runtime/vm/dart_api_impl.cc
diff --git a/runtime/vm/dart_api_impl.cc b/runtime/vm/dart_api_impl.cc
index 17c7f33dec6a0f4fba2f44cd9ccf32a77acf52cd..37183cfefc1594b1d9e7638ff5a08ad438233604 100644
--- a/runtime/vm/dart_api_impl.cc
+++ b/runtime/vm/dart_api_impl.cc
@@ -4555,4 +4555,17 @@ DART_EXPORT Dart_Isolate Dart_GetServiceIsolate(void* callback_data) {
   return Api::CastIsolate(Service::GetServiceIsolate(callback_data));
 }
 
+
+DART_EXPORT bool Dart_IsServiceRunning() {
+  return Service::IsRunning();
+}
+
+
+DART_EXPORT void Dart_RegisterServiceRequestCallback(
+    const char* name,
+    Dart_ServiceRequestCallback callback,
+    void* user_data) {
+  Service::RegisterEmbedderCallback(name, callback, user_data);
+}
+
 }  // namespace dart