Add current rss and embedder name to Observatory

runtime/observatory/lib/src/service/object.dart

Index: runtime/observatory/lib/src/service/object.dart
diff --git a/runtime/observatory/lib/src/service/object.dart b/runtime/observatory/lib/src/service/object.dart
index 246fba9f85110b8cdf473f2221350a625a9c0b3e..6814016d203439684d3cb3b0c431eb0d2a7696eb 100644
--- a/runtime/observatory/lib/src/service/object.dart
+++ b/runtime/observatory/lib/src/service/object.dart
@@ -670,6 +670,7 @@ abstract class VM extends ServiceObjectOwner implements M.VM {
   String version = 'unknown';
   String hostCPU;
   String targetCPU;
+  String embedder;
   int architectureBits;
   bool assertsEnabled = false;
   bool typeChecksEnabled = false;
@@ -677,7 +678,8 @@ abstract class VM extends ServiceObjectOwner implements M.VM {
   int pid = 0;
   int heapAllocatedMemoryUsage = 0;
   int heapAllocationCount = 0;
-  int maxRSS = 0;
+  int maxRSS;
+  int currentRSS;
   bool profileVM = false;
   DateTime startTime;
   DateTime refreshTime;
@@ -981,7 +983,9 @@ abstract class VM extends ServiceObjectOwner implements M.VM {
     if (map['_heapAllocationCount'] != null) {
       heapAllocationCount = map['_heapAllocationCount'];
     }
+    embedder = map['_embedder'];
     maxRSS = map['_maxRSS'];
+    currentRSS = map['_currentRSS'];
     profileVM = map['_profilerMode'] == 'VM';
     assertsEnabled = map['_assertsEnabled'];
     typeChecksEnabled = map['_typeChecksEnabled'];