Remove unused implementations in WebInbandTextTrackImpl

content/renderer/media/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 "content/renderer/media/webinbandtexttrack_impl.h"
 
 #include "base/logging.h"
 
 namespace content {
 
 WebInbandTextTrackImpl::WebInbandTextTrackImpl(
     Kind kind,
     const blink::WebString& label,
     const blink::WebString& language,
     int index)
     : client_(NULL),
-      mode_(ModeDisabled),
       kind_(kind),
       label_(label),
       language_(language),
       index_(index) {
 }
 
 WebInbandTextTrackImpl::~WebInbandTextTrackImpl() {
   DCHECK(!client_);
 }
 
 void WebInbandTextTrackImpl::setClient(
     blink::WebInbandTextTrackClient* client) {
   client_ = client;
 }
 
 blink::WebInbandTextTrackClient* WebInbandTextTrackImpl::client() {
   return client_;
 }
 
-void WebInbandTextTrackImpl::setMode(Mode mode) {
-  mode_ = mode;
-}
-
-WebInbandTextTrackImpl::Mode WebInbandTextTrackImpl::mode() const {
-  return mode_;
-}
-
 WebInbandTextTrackImpl::Kind WebInbandTextTrackImpl::kind() const {
   return kind_;
 }
 
-bool WebInbandTextTrackImpl::isClosedCaptions() const {
-  switch (kind_) {
-  case KindCaptions:
-  case KindSubtitles:
-    return true;
-
-  default:
-    return false;
-  }
-}
-
 blink::WebString WebInbandTextTrackImpl::label() const {
   return label_;
 }
 
 blink::WebString WebInbandTextTrackImpl::language() const {
   return language_;
 }
 
-bool WebInbandTextTrackImpl::isDefault() const {
-  return false;
-}
-
 int WebInbandTextTrackImpl::textTrackIndex() const {
   return index_;
 }
 
 }  // namespace content