Protocol Buffer runtime library and 'protoc' plugin

lib/protobuf/plugin/ProtoGenDartConfig.dart

Index: lib/protobuf/plugin/ProtoGenDartConfig.dart
diff --git a/lib/protobuf/plugin/ProtoGenDartConfig.dart b/lib/protobuf/plugin/ProtoGenDartConfig.dart
new file mode 100644
index 0000000000000000000000000000000000000000..b95b2b64176ea2cd5d4218e47d4c326ce27756eb
--- /dev/null
+++ b/lib/protobuf/plugin/ProtoGenDartConfig.dart
@@ -0,0 +1,19 @@
+// Copyright (c) 2011, 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.
+
+/**
+ * Represents the configuration of a Protoc call to dart to generate code.
+ */
+class ProtocGenDartConfig {
+  ProtocGenDartConfig() : protoFiles = [], valid = true;
+  String out;
+  String parameter;
+  bool valid;
+  List<String> protoFiles;
+  String toString() {
+    String files = Strings.join(protoFiles,', ');
+    return "ProtocGenDartConfig: $out, $parameter [$files]";
+  }
+}
+