Service isolate requests Observatory assets from embedder

runtime/vm/service.h

Index: runtime/vm/service.h
diff --git a/runtime/vm/service.h b/runtime/vm/service.h
index 3fe90fec457c7490dbae3430af1a4beda428c4ff..ac3a5d32ed03193b1c125c8658f24659f74af33c 100644
--- a/runtime/vm/service.h
+++ b/runtime/vm/service.h
@@ -101,6 +101,9 @@ class Service : public AllStatic {
       Dart_ServiceStreamListenCallback listen_callback,
       Dart_ServiceStreamCancelCallback cancel_callback);
 
+  static void SetGetServiceAssetsCallback(
+      Dart_GetVMServiceAssetsArchive get_service_assets);
+
   static void SendEchoEvent(Isolate* isolate, const char* text);
   static void SendGraphEvent(Isolate* isolate);
   static void SendInspectEvent(Isolate* isolate, const Object& inspectee);
@@ -140,6 +143,8 @@ class Service : public AllStatic {
   static bool ListenStream(const char* stream_id);
   static void CancelStream(const char* stream_id);
 
+  static RawObject* RequestAssets();
+
   static Dart_ServiceStreamListenCallback stream_listen_callback() {
     return stream_listen_callback_;
   }
@@ -182,6 +187,7 @@ class Service : public AllStatic {
   static EmbedderServiceHandler* root_service_handler_head_;
   static Dart_ServiceStreamListenCallback stream_listen_callback_;
   static Dart_ServiceStreamCancelCallback stream_cancel_callback_;
+  static Dart_GetVMServiceAssetsArchive get_service_assets_callback_;
 
   static bool needs_isolate_events_;
   static bool needs_debug_events_;