Add crash dumps to service protocol and Observatory

runtime/observatory/web/main.dart

Index: runtime/observatory/web/main.dart
diff --git a/runtime/observatory/web/main.dart b/runtime/observatory/web/main.dart
index 5880006dccc374b813bcd52f44a15b69034a46bd..09ad35604f97d9d9bf0fc199b662d8d207b7d8ab 100644
--- a/runtime/observatory/web/main.dart
+++ b/runtime/observatory/web/main.dart
@@ -21,11 +21,13 @@ main() {
   Logger.root.info('Starting Observatory');
   GoogleChart.initOnce().then((_) {
     // Charts loaded, initialize polymer.
-    Logger.root.info('Initializing Polymer');
-    try {
-      initPolymer();
-    } catch (e) {
-      Logger.root.severe('Error initializing polymer: $e');
-    }
+    initPolymer().run(() {
+      Logger.root.info('Polymer initialized');
+      // Code here is in the polymer Zone, which ensures that
+      // @observable properties work correctly.
+      Polymer.onReady.then((_) {
+        Logger.root.info('Polymer elements have been upgraded');
+      });
+    });
   });
 }