Do not pass the origin to MediaDevicesDispatcherHost.

content/renderer/media/media_devices_event_dispatcher.cc

Index: content/renderer/media/media_devices_event_dispatcher.cc
diff --git a/content/renderer/media/media_devices_event_dispatcher.cc b/content/renderer/media/media_devices_event_dispatcher.cc
index 6c4e0f19937473a11453cd31fff624bc9938c102..8cda5e9cfcd20d1575cce0c85b6126c117ca9b6b 100644
--- a/content/renderer/media/media_devices_event_dispatcher.cc
+++ b/content/renderer/media/media_devices_event_dispatcher.cc
@@ -37,14 +37,13 @@ MediaDevicesEventDispatcher::~MediaDevicesEventDispatcher() {}
 MediaDevicesEventDispatcher::SubscriptionId
 MediaDevicesEventDispatcher::SubscribeDeviceChangeNotifications(
     MediaDeviceType type,
-    const url::Origin& security_origin,
     const MediaDevicesEventDispatcher::DevicesChangedCallback& callback) {
   DCHECK(thread_checker_.CalledOnValidThread());
   DCHECK(IsValidMediaDeviceType(type));
 
   SubscriptionId subscription_id = ++current_id_;
   GetMediaDevicesDispatcher()->SubscribeDeviceChangeNotifications(
-      type, subscription_id, security_origin);
+      type, subscription_id);
   SubscriptionList& subscriptions = device_change_subscriptions_[type];
   subscriptions.push_back(Subscription{subscription_id, callback});
 
@@ -72,18 +71,17 @@ void MediaDevicesEventDispatcher::UnsubscribeDeviceChangeNotifications(
 
 MediaDevicesEventDispatcher::SubscriptionIdList
 MediaDevicesEventDispatcher::SubscribeDeviceChangeNotifications(
-    const url::Origin& security_origin,
     const DevicesChangedCallback& callback) {
   SubscriptionIdList list;
   SubscriptionId id;
   id = SubscribeDeviceChangeNotifications(MEDIA_DEVICE_TYPE_AUDIO_INPUT,
-                                          security_origin, callback);
+                                          callback);
   list.push_back(id);
   id = SubscribeDeviceChangeNotifications(MEDIA_DEVICE_TYPE_VIDEO_INPUT,
-                                          security_origin, callback);
+                                          callback);
   list.push_back(id);
   id = SubscribeDeviceChangeNotifications(MEDIA_DEVICE_TYPE_AUDIO_OUTPUT,
-                                          security_origin, callback);
+                                          callback);
   list.push_back(id);
 
   return list;