RemoteMediaStreamImpl using WebRtcMediaStreamTrackMap.

content/renderer/media/webrtc/webrtc_media_stream_track_adapter_map.h

 // Copyright (c) 2017 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.
 
 #ifndef CONTENT_RENDERER_MEDIA_WEBRTC_WEBRTC_MEDIA_STREAM_TRACK_COLLECTION_H_
 #define CONTENT_RENDERER_MEDIA_WEBRTC_WEBRTC_MEDIA_STREAM_TRACK_COLLECTION_H_
 
 #include <map>
 #include <string>
 
@@ skipping 66 matching lines @@
 
     AdapterEntry* entry() { return &it_->second; }
 
     scoped_refptr<WebRtcMediaStreamTrackAdapterMap> map_;
     Type type_;
     MapEntryIterator it_;
     // A reference to the entry's adapter, ensures that |HasOneRef| is false.
     scoped_refptr<WebRtcMediaStreamTrackAdapter> adapter_;
   };
 
+  // Called on the main thread.
   WebRtcMediaStreamTrackAdapterMap(
-      PeerConnectionDependencyFactory* const factory,
-      const scoped_refptr<base::SingleThreadTaskRunner>& main_thread);
+      PeerConnectionDependencyFactory* const factory);
 
   // Gets the new reference to the local track adapter by ID, or null if no such
   // adapter was found. When all references are destroyed the adapter is
   // disposed and removed from the map. This method can be called from any
   // thread, but references must be destroyed on the main thread.
   std::unique_ptr<AdapterRef> GetLocalTrackAdapter(const std::string& id);
   // Invoke on the main thread. Gets a new reference to the local track adapter
   // for the web track. If no adapter exists for the track one is created and
   // initialized. When all references are destroyed the adapter is disposed and
   // removed from the map. References must be destroyed on the main thread.
@@ skipping 36 matching lines @@
   scoped_refptr<base::SingleThreadTaskRunner> main_thread_;
 
   mutable base::Lock lock_;
   std::map<std::string, AdapterEntry> local_track_adapters_;
   std::map<std::string, AdapterEntry> remote_track_adapters_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_MEDIA_WEBRTC_WEBRTC_MEDIA_STREAM_TRACK_COLLECTION_H_