Modified service to include current native zone memory consumption information in the VM object. Ad…

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 74a99ab385916efe704947feba59a7d4f7ebff54..4e633f6f774d8b8330ae3b6dd9b46a6298f2d502 100644
--- a/runtime/observatory/lib/src/service/object.dart
+++ b/runtime/observatory/lib/src/service/object.dart
@@ -659,6 +659,7 @@ abstract class VM extends ServiceObjectOwner implements M.VM {
   int architectureBits;
   bool assertsEnabled = false;
   bool typeChecksEnabled = false;
+  int nativeZoneMemoryUsage = 0;
   int pid = 0;
   int maxRSS = 0;
   bool profileVM = false;
@@ -946,6 +947,7 @@ abstract class VM extends ServiceObjectOwner implements M.VM {
     int startTimeMillis = map['startTime'];
     startTime = new DateTime.fromMillisecondsSinceEpoch(startTimeMillis);
     refreshTime = new DateTime.now();
+    nativeZoneMemoryUsage = map['_nativeZoneMemoryUsage'];

[Cutch, 2017/01/31 17:15:23]

if (map['_...']) != null) {
  nativeZoneMemoryUsage = map['_...'];
}

[bkonyi, 2017/01/31 21:13:06]

Done, but why is this check not done for other fields in the VM object?

     pid = map['pid'];
     maxRSS = map['_maxRSS'];
     profileVM = map['_profilerMode'] == 'VM';