DevFS initial implementation

runtime/vm/service.h

Index: runtime/vm/service.h
diff --git a/runtime/vm/service.h b/runtime/vm/service.h
index 084b2180031f5c78b588eb7d12a67cdbfa030f46..d2140e6f145c046f5b3157241e64dc9f980f299c 100644
--- a/runtime/vm/service.h
+++ b/runtime/vm/service.h
@@ -81,6 +81,9 @@ class Service : public AllStatic {
  public:
   // Handles a message which is not directed to an isolate.
   static void HandleRootMessage(const Array& message);
+  // Handles a message which is not directed to an isolate and also
+  // expects the parameter keys and values to be actual dart objects.
+  static void HandleObjectRootMessage(const Array& message);
 
   // Handles a message which is directed to a particular isolate.
   static void HandleIsolateMessage(Isolate* isolate, const Array& message);
@@ -161,7 +164,9 @@ class Service : public AllStatic {
   static void PrintJSONForVM(JSONStream* js, bool ref);
 
  private:
-  static void InvokeMethod(Isolate* isolate, const Array& message);
+  static void InvokeMethod(Isolate* isolate,
+                           const Array& message,
+                           bool parameters_are_dart_objects = false);
 
   static void EmbedderHandleMessage(EmbedderServiceHandler* handler,
                                     JSONStream* js);