Implement disabling and enabling media tracks

media/filters/decrypting_demuxer_stream.cc

 // Copyright (c) 2012 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/filters/decrypting_demuxer_stream.h"
 
 #include "base/bind.h"
 #include "base/callback_helpers.h"
 #include "base/location.h"
 #include "base/logging.h"
@@ skipping 134 matching lines @@
 }
 
 bool DecryptingDemuxerStream::SupportsConfigChanges() {
   return demuxer_stream_->SupportsConfigChanges();
 }
 
 VideoRotation DecryptingDemuxerStream::video_rotation() {
   return demuxer_stream_->video_rotation();
 }
 
+bool DecryptingDemuxerStream::enabled() const {
+  return demuxer_stream_->enabled();
+}
+
+void DecryptingDemuxerStream::set_enabled(bool enabled,
+                                          base::TimeDelta timestamp) {
+  demuxer_stream_->set_enabled(enabled, timestamp);
+}
+
 DecryptingDemuxerStream::~DecryptingDemuxerStream() {
   DVLOG(2) << __FUNCTION__ << " : state_ = " << state_;
   DCHECK(task_runner_->BelongsToCurrentThread());
 
   if (state_ == kUninitialized)
     return;
 
   if (decryptor_) {
     decryptor_->CancelDecrypt(GetDecryptorStreamType());
     decryptor_ = NULL;
@@ skipping 204 matching lines @@
       break;
     }
 
     default:
       NOTREACHED();
       return;
   }
 }
 
 }  // namespace media