Import chrome idl into third_party

third_party/chrome/idl/experimental_dns.idl

+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+[nodoc] namespace experimental.dns {
+
+  dictionary ResolveCallbackResolveInfo {
+    // The result code. Zero indicates success.
+    long resultCode;
+
+    // A string representing the IP address literal. Supplied only if resultCode
+    // indicates success. Note that we presently return only IPv4 addresses.
+    DOMString? address;
+  };
+
+  callback ResolveCallback = void (ResolveCallbackResolveInfo resolveInfo);
+
+  interface Functions {
+    // Resolves the given hostname or IP address literal.
+    // |hostname| : The hostname to resolve.
+    // |callback| : Called when the resolution operation completes.
+    static void resolve(DOMString hostname,
+                        ResolveCallback callback);
+  };
+
+};