Data type conversion between extensions API and Cast API

chrome/common/extensions/api/webrtc_cast_send_transport.idl

 // Copyright 2013 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.
 
 // The <code>chrome.webrtc.castSendTransport</code> API takes a track as
 // a source of media, and sends that media on the inner transport according to
 // the given RtpParams.
 namespace webrtc.castSendTransport {
   // Params for audio and video codec.
   dictionary CodecSpecificParams {
@@ skipping 19 matching lines @@
     // The number of channels.
     long? channels;
 
     // Video width in pixels.
     long? width;
 
     // Video height in pixels.
     long? height;
 
     // A list of codec specific params.
-    CodecSpecificParams[] codecSpecficParams;
+    CodecSpecificParams[] codecSpecificParams;
   };
 
   // Cast transport capabilities
   dictionary RtpCaps {
     // RTP payload params.
     RtpPayloadParams[] payloads;
 
     DOMString[] rtcpFeatures;
 
     DOMString[] fecMechanisms;
@@ skipping 81 matching lines @@
     // left.
     // |transportId| : The ID of the transport.
     static void onTimeout(long transportId);
 
     // Event fired when a cast send transport has error.
     // |transportId| : The ID of the transport.
     // |errorString| : The error info.
     static void onError(long transportId, DOMString errorString);
   };
 };