Do not pass the origin to MediaDevicesDispatcherHost.

content/browser/renderer_host/media/audio_output_authorization_handler.cc

 // Copyright 2016 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/browser/renderer_host/media/audio_output_authorization_handler.h"
 
 #include "base/memory/ptr_util.h"
 #include "base/task_runner_util.h"
 #include "content/browser/bad_message.h"
 #include "content/browser/renderer_host/media/audio_input_device_manager.h"
@@ skipping 107 matching lines @@
            media::AudioParameters::UnavailableDeviceParams(), std::string());
     bad_message::ReceivedBadMessage(render_process_id_,
                                     bad_message::AOAH_UNAUTHORIZED_URL);
     return;
   }
 
   // Check that MediaStream device permissions have been granted for
   // nondefault devices.
   permission_checker_->CheckPermission(
       MEDIA_DEVICE_TYPE_AUDIO_OUTPUT, render_process_id_, render_frame_id,
-      security_origin,
       base::Bind(&AudioOutputAuthorizationHandler::AccessChecked,
                  weak_factory_.GetWeakPtr(), std::move(cb), device_id,
                  security_origin));
 }
 
 void AudioOutputAuthorizationHandler::AccessChecked(
     AuthorizationCompletedCallback cb,
     const std::string& device_id,
     const url::Origin& security_origin,
     bool has_access) const {
@@ skipping 60 matching lines @@
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
   DCHECK(!raw_device_id.empty());
 
   cb.Run(media::OUTPUT_DEVICE_STATUS_OK, should_send_id,
          output_params.IsValid() ? output_params
                                  : TryToFixAudioParameters(output_params),
          raw_device_id);
 }
 
 }  // namespace content