Remove DebuggerEvent. Refactor remaining code.

runtime/vm/service.cc

 // 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.
 
 #include "vm/service.h"
 
 #include "include/dart_api.h"
 #include "include/dart_native_api.h"
 #include "platform/globals.h"
 
@@ skipping 990 matching lines @@
                  ServiceIsolate::server_address());
   }
   const Error& err = Error::Handle(Thread::Current()->sticky_error());
   if (!err.IsNull()) {
     OS::PrintErr("%s\n", err.ToErrorCString());
   }
 }
 
 
 void Service::HandleEvent(ServiceEvent* event) {
-  if (event->isolate() != NULL &&
-      ServiceIsolate::IsServiceIsolateDescendant(event->isolate())) {
+  if (event->stream_info() != NULL &&
+      !event->stream_info()->enabled()) {
+    if (FLAG_warn_on_pause_with_no_debugger &&
+        event->IsPause()) {
+      // If we are about to pause a running program which has no
+      // debugger connected, tell the user about it.
+      ReportPauseOnConsole(event);
+    }
+    // Ignore events when no one is listening to the event stream.
     return;
   }
-  if (FLAG_warn_on_pause_with_no_debugger &&
-      event->IsPause() && !Service::debug_stream.enabled()) {
-    // If we are about to pause a running program which has no
-    // debugger connected, tell the user about it.
-    ReportPauseOnConsole(event);
-  }
   if (!ServiceIsolate::IsRunning()) {
     return;
   }
   JSONStream js;
   const char* stream_id = event->stream_id();
   ASSERT(stream_id != NULL);
   {
     JSONObject jsobj(&js);
     jsobj.AddProperty("jsonrpc", "2.0");
     jsobj.AddProperty("method", "streamNotify");
@@ skipping 2945 matching lines @@
     if (strcmp(method_name, method.name) == 0) {
       return &method;
     }
   }
   return NULL;
 }
 
 #endif  // !PRODUCT
 
 }  // namespace dart