Remove the index of in-band tracks on the Chromium side

media/blink/webinbandtexttrack_impl.cc

 // 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.
 
 #include "media/blink/webinbandtexttrack_impl.h"
 
 #include "base/logging.h"
 
 namespace media {
 
 WebInbandTextTrackImpl::WebInbandTextTrackImpl(
     Kind kind,
     const blink::WebString& label,
     const blink::WebString& language,
-    const blink::WebString& id,
-    int index)
+    const blink::WebString& id)
     : client_(NULL),
       kind_(kind),
       label_(label),
       language_(language),
-      id_(id),
-      index_(index) {
+      id_(id) {
 }
 
 WebInbandTextTrackImpl::~WebInbandTextTrackImpl() {
   DCHECK(!client_);
 }
 
 void WebInbandTextTrackImpl::setClient(
     blink::WebInbandTextTrackClient* client) {
   client_ = client;
 }
@@ skipping 11 matching lines @@
 }
 
 blink::WebString WebInbandTextTrackImpl::language() const {
   return language_;
 }
 
 blink::WebString WebInbandTextTrackImpl::id() const {
   return id_;
 }
 
-int WebInbandTextTrackImpl::textTrackIndex() const {
-  return index_;
-}
-
 }  // namespace media