Add 'Server' and 'User-Agent' default header fields.

runtime/bin/common.cc

 // Copyright (c) 2012, 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 "bin/builtin.h"
 #include "bin/isolate_data.h"
 #include "include/dart_api.h"
 
 namespace dart {
 namespace bin {
@@ skipping 40 matching lines @@
   Dart_Handle immutable_array_class =
       Dart_HandleFromPersistent(isolate_data->immutable_array_class);
   bool builtin_array =
       (Dart_IdentityEquals(list_class, growable_object_array_class) ||
        Dart_IdentityEquals(list_class, object_array_class) ||
        Dart_IdentityEquals(list_class, immutable_array_class));
   Dart_SetReturnValue(args, Dart_NewBoolean(builtin_array));
   Dart_ExitScope();
 }
 
+
+void FUNCTION_NAME(Common_GetVersion)(Dart_NativeArguments args) {
+  Dart_EnterScope();
+  Dart_SetReturnValue(args, Dart_NewStringFromCString(Dart_VersionString()));
+  Dart_ExitScope();
+}
+
 }  // namespace bin
 }  // namespace dart