- Add a minimal implementation of Capability.

runtime/vm/dart_api_message.cc

Index: runtime/vm/dart_api_message.cc
===================================================================
--- runtime/vm/dart_api_message.cc	(revision 35191)
+++ runtime/vm/dart_api_message.cc	(working copy)
@@ -316,20 +316,6 @@
         // TODO(sgjesse): Handle other instances. Currently this will
         // skew the reading as the fields of the instance is not read.
       }
-    } else if (strcmp("dart:isolate", library_uri) == 0 &&
-               strncmp("_SendPortImpl@", class_name, 14) == 0) {
-      Dart_CObject_Internal* cls =
-          reinterpret_cast<Dart_CObject_Internal*>(ReadObjectImpl());
-      ASSERT(cls == object->cls);
-      // Read the port id.
-      Dart_CObject* port = ReadObjectImpl();
-      if (port->type == Dart_CObject_kInt32) {
-        object->type = Dart_CObject_kSendPort;
-        object->value.as_send_port = port->value.as_int32;
-      } else if (port->type == Dart_CObject_kInt64) {
-        object->type = Dart_CObject_kSendPort;
-        object->value.as_send_port = port->value.as_int64;
-      }
     } else {
       // TODO(sgjesse): Handle other instances. Currently this will
       // skew the reading as the fields of the instance is not read.
@@ -601,6 +587,13 @@
       ::free(utf16);
       return object;
     }
+    case kSendPortCid: {
+      int64_t value64 = Read<int64_t>();
+      Dart_CObject* object = AllocateDartCObject(Dart_CObject_kSendPort);
+      object->value.as_send_port = value64;
+      AddBackRef(object_id, object, kIsDeserialized);
+      return object;
+    }
 
 #define READ_TYPED_DATA_HEADER(type)                                           \
       intptr_t len = ReadSmiValue();                                           \