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

media/blink/webmediaplayer_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/webmediaplayer_impl.h"
 
 #include <algorithm>
 #include <limits>
 #include <string>
 #include <vector>
@@ skipping 152 matching lines @@
       client_(client),
       delegate_(delegate),
       defer_load_cb_(params.defer_load_cb()),
       gpu_factories_(params.gpu_factories()),
       supports_save_(true),
       chunk_demuxer_(NULL),
       compositor_task_runner_(params.compositor_task_runner()),
       compositor_(new VideoFrameCompositor(
           BIND_TO_RENDER_LOOP(&WebMediaPlayerImpl::OnNaturalSizeChanged),
           BIND_TO_RENDER_LOOP(&WebMediaPlayerImpl::OnOpacityChanged))),
-      text_track_index_(0),
       encrypted_media_support_(
           cdm_factory.Pass(),
           client,
           base::Bind(&WebMediaPlayerImpl::SetCdm, AsWeakPtr())),
       audio_hardware_config_(params.audio_hardware_config()),
       renderer_(renderer.Pass()) {
   // Threaded compositing isn't enabled universally yet.
   if (!compositor_task_runner_.get())
     compositor_task_runner_ = base::MessageLoopProxy::current();
 
@@ skipping 668 matching lines @@
   const WebInbandTextTrackImpl::Kind web_kind =
       static_cast<WebInbandTextTrackImpl::Kind>(config.kind());
   const blink::WebString web_label =
       blink::WebString::fromUTF8(config.label());
   const blink::WebString web_language =
       blink::WebString::fromUTF8(config.language());
   const blink::WebString web_id =
       blink::WebString::fromUTF8(config.id());
 
   scoped_ptr<WebInbandTextTrackImpl> web_inband_text_track(
-      new WebInbandTextTrackImpl(web_kind, web_label, web_language, web_id,
-                                 text_track_index_++));
+      new WebInbandTextTrackImpl(web_kind, web_label, web_language, web_id));
 
   scoped_ptr<TextTrack> text_track(new TextTrackImpl(
       main_task_runner_, client_, web_inband_text_track.Pass()));
 
   done_cb.Run(text_track.Pass());
 }
 
 void WebMediaPlayerImpl::DataSourceInitialized(bool success) {
   DCHECK(main_task_runner_->BelongsToCurrentThread());
 
@@ skipping 195 matching lines @@
   compositor_task_runner_->PostTask(FROM_HERE,
                                     base::Bind(&GetCurrentFrameAndSignal,
                                                base::Unretained(compositor_),
                                                &video_frame,
                                                &event));
   event.Wait();
   return video_frame;
 }
 
 }  // namespace media