Major rework of vm service events.

runtime/observatory/lib/src/app/application.dart

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // 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.
 
 part of app;
 
 /// The observatory application. Instances of this are created and owned
 /// by the observatory_application custom element.
 class ObservatoryApplication extends Observable {
   static ObservatoryApplication app;
@@ skipping 46 matching lines @@
     }
 
     notifications.removeWhere((oldEvent) {
         return (oldEvent.isolate == isolate &&
                 isPauseEvent(oldEvent));
       });
   }
 
   void _onEvent(ServiceEvent event) {
     switch(event.eventType) {
-      case 'IsolateCreated':
+      case 'IsolateStart':
+      case '_Graph':
+      case 'BreakpointAdded':
+      case 'BreakpointResolved':
+      case 'BreakpointRemoved':
+      case 'GC':
         // Ignore for now.
         break;
 
-      case 'IsolateResumed':
-        event.isolate.pauseEvent = null;
+      case 'IsolateExit':
+      case 'Resume':
+        removePauseEvents(event.isolate);
         break;
 
-      case 'IsolateShutdown':
-        // TODO(turnidge): Should we show the user isolate shutdown events?
-        // What if there are hundreds of them?  Coalesce multiple
-        // shutdown events into one notification?
-        removePauseEvents(event.isolate);
-
-        // TODO(turnidge): Reload the isolate for now in case it is
-        // paused.  We may need to distinguish an IsolateShutdown
-        // event from a "paused at isolate shutdown" event.
-        event.isolate.reload();
-        break;
-
-      case 'BreakpointResolved':
-        event.isolate.reloadBreakpoints();
-        break;
-
-      case 'BreakpointReached':
-      case 'IsolateInterrupted':
-      case 'ExceptionThrown':
-        event.isolate.pauseEvent = event;
+      case 'PauseStart':
+      case 'PauseExit':
+      case 'PauseBreakpoint':
+      case 'PauseInterrupted':
+      case 'PauseException':
         removePauseEvents(event.isolate);
         notifications.add(event);
         break;
 
-      case '_Graph':
-        event.isolate.loadHeapSnapshot(event);
-        break;
-
-      case 'GC':
-        // Ignore GC events for now.
-        break;
-
       default:
         // Ignore unrecognized events.
         Logger.root.severe('Unrecognized event: $event');
         break;
     }
   }
 
   void _registerPages() {
     _pageRegistry.add(new VMPage(this));
     _pageRegistry.add(new FlagsPage(this));
@@ skipping 113 matching lines @@
 
   _vmDisconnected(VM vm) {
     if (this.vm != vm) {
       // This disconnect event occured *after* a new VM was installed.
       return;
     }
     this.vm = null;
     notifications.add(new ServiceEvent.vmDisconencted());
   }
 }