Convert Dictionary handling to RTCConfiguration IDL dictionary

third_party/WebKit/Source/modules/peerconnection/RTCIceServer.idl

Index: third_party/WebKit/Source/modules/peerconnection/RTCIceServer.idl
diff --git a/third_party/WebKit/Source/modules/peerconnection/RTCIceServer.idl b/third_party/WebKit/Source/modules/peerconnection/RTCIceServer.idl
new file mode 100644
index 0000000000000000000000000000000000000000..8a4941d144ba8712eb0a3461bafb9ecd324ba84b
--- /dev/null
+++ b/third_party/WebKit/Source/modules/peerconnection/RTCIceServer.idl
@@ -0,0 +1,14 @@
+// Copyright 2016 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.
+
+// https://w3c.github.io/webrtc-pc/#rtciceserver-dictionary
+
+dictionary RTCIceServer {
+    // TODO(foolip): |urls| should be required and |url| is not in the spec.
+    (DOMString or sequence<DOMString>) urls;
+    DOMString url;
+    DOMString username;
+    DOMString credential;
+    // TODO(foolip): RTCIceCredentialType credentialType = "password";
+};