Provide an API to dart:developer to control the web server hosting the Service Protocol

runtime/bin/vmservice/server.dart

Index: runtime/bin/vmservice/server.dart
diff --git a/runtime/bin/vmservice/server.dart b/runtime/bin/vmservice/server.dart
index 32ee7d6d24c0c06009b9d6e165b120765d6d477e..0f9f8ce6ea4e3a7306607da8a981b5824c68b424 100644
--- a/runtime/bin/vmservice/server.dart
+++ b/runtime/bin/vmservice/server.dart
@@ -128,6 +128,15 @@ class Server {
   bool get running => _server != null;
   bool _displayMessages = false;
 
+  Uri get serverAddress {
+    if (!running) {
+      return null;
+    }
+    var ip = _server.address.address;
+    var port = _server.port;
+    return Uri.parse('http://$ip:$port/');
+  }
+
   Server(this._service, this._ip, this._port, this._originCheckDisabled) {
     _displayMessages = (_ip != '127.0.0.1' || _port != 8181);
   }