vmservice: basic object graph serialization.

runtime/vm/service.h

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef VM_SERVICE_H_
 #define VM_SERVICE_H_
 
 #include "include/dart_api.h"
 
 #include "vm/allocation.h"
@@ skipping 53 matching lines @@
   static void RegisterRootEmbedderCallback(
       const char* name,
       Dart_ServiceRequestCallback callback,
       void* user_data);
 
   static bool IsServiceIsolate(Isolate* isolate) {
     return isolate == service_isolate_;
   }
 
   static void SendEchoEvent(Isolate* isolate);
+  static void SendGraphEvent(Isolate* isolate);
 
  private:
   // These must be kept in sync with service/constants.dart
   static const int kEventFamilyDebug = 0;
   static const int kEventFamilyGC = 1;
   static const uint32_t kEventFamilyDebugMask = (1 << kEventFamilyDebug);
   static const uint32_t kEventFamilyGCMask = (1 << kEventFamilyGC);
 
   static void EmbedderHandleMessage(EmbedderServiceHandler* handler,
                                     JSONStream* js);
@@ skipping 14 matching lines @@
 
   static Isolate* service_isolate_;
   static Dart_LibraryTagHandler embedder_provided_handler_;
   static Dart_Port port_;
   static uint32_t event_mask_;
 };
 
 }  // namespace dart
 
 #endif  // VM_SERVICE_H_