Extend Observatory to display libraries, classes, fields, functions and code.

runtime/bin/vmservice/client/lib/src/observatory/application.dart

Index: runtime/bin/vmservice/client/lib/src/observatory/application.dart
diff --git a/runtime/bin/vmservice/client/lib/src/observatory/application.dart b/runtime/bin/vmservice/client/lib/src/observatory/application.dart
index d6fb05678b80a862b2166183b01d883194df03f6..f321dbe93423cbae4ca00e210ce1b4d3345b7742 100644
--- a/runtime/bin/vmservice/client/lib/src/observatory/application.dart
+++ b/runtime/bin/vmservice/client/lib/src/observatory/application.dart
@@ -6,12 +6,15 @@ part of observatory;
 
 /// The observatory application. Instances of this are created and owned
 /// by the observatory_application custom element.
-class ObservatoryApplication {
-  final LocationManager locationManager = new LocationManager();
-  final RequestManager requestManager = new HttpRequestManager();
-  final IsolateManager isolateManager = new IsolateManager();
+class ObservatoryApplication extends Observable {
+  @observable final LocationManager locationManager;
+  @observable final RequestManager requestManager;
+  @observable final IsolateManager isolateManager;
 
-  ObservatoryApplication() {
+  ObservatoryApplication() :
+      locationManager = new LocationManager(),
+      requestManager = new HttpRequestManager(),
+      isolateManager = new IsolateManager() {
     locationManager._application = this;
     requestManager._application = this;
     isolateManager._application = this;