Add isolate tag-profile and better handling of errors

runtime/bin/vmservice/client/lib/src/elements/service_error_view.dart

Index: runtime/bin/vmservice/client/lib/src/elements/service_error_view.dart
diff --git a/runtime/bin/vmservice/client/lib/src/elements/vm_view.dart b/runtime/bin/vmservice/client/lib/src/elements/service_error_view.dart
similarity index 61%
copy from runtime/bin/vmservice/client/lib/src/elements/vm_view.dart
copy to runtime/bin/vmservice/client/lib/src/elements/service_error_view.dart
index 8d5d1802c8f82e16d9eacb2bd4cd4d2fbb3814c2..9a12514f57a9aa3cb3f56003ee737b2e8071ce76 100644
--- a/runtime/bin/vmservice/client/lib/src/elements/vm_view.dart
+++ b/runtime/bin/vmservice/client/lib/src/elements/service_error_view.dart
@@ -2,20 +2,16 @@
 // 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.
 
-library vm_view_element;
+library service_error_view_element;
 
 import 'observatory_element.dart';
-import 'package:observatory/service.dart';
 import 'package:polymer/polymer.dart';
+import 'package:observatory/service.dart';
 
-@CustomTag('vm-view')
-class VMViewElement extends ObservatoryElement {
-  @published VM vm;
+/// Displays a ServiceError
+@CustomTag('service-error-view')
+class ServiceErrorViewElement extends ObservatoryElement {
   @published ServiceError error;
 
-  VMViewElement.created() : super.created();
-
-  void refresh(var done) {
-    vm.reload().whenComplete(done);
-  }
+  ServiceErrorViewElement.created() : super.created();
 }