Expose new video codec factories in the PeerConnectionFactory API

api/peerconnectioninterface.h

Index: api/peerconnectioninterface.h
diff --git a/api/peerconnectioninterface.h b/api/peerconnectioninterface.h
index 13e78e645506c7de0a3358ac8681cc5ce90d4507..3753da4d091c7d0c8013d9ab1af5a7b444b07e39 100644
--- a/api/peerconnectioninterface.h
+++ b/api/peerconnectioninterface.h
@@ -112,6 +112,8 @@ class AudioDeviceModule;
 class AudioMixer;
 class CallFactoryInterface;
 class MediaConstraintsInterface;
+class VideoDecoderFactory;
+class VideoEncoderFactory;
 
 // MediaStream container interface.
 class StreamCollectionInterface : public rtc::RefCountInterface {
@@ -1116,6 +1118,21 @@ rtc::scoped_refptr<PeerConnectionFactoryInterface> CreatePeerConnectionFactory(
     rtc::scoped_refptr<AudioMixer> audio_mixer,
     rtc::scoped_refptr<AudioProcessing> audio_processing);
 
+// Create a new instance of PeerConnectionFactoryInterface with optional video
+// codec factories. These video factories represents all video codecs, i.e. no
+// extra internal video codecs will be added.
+rtc::scoped_refptr<PeerConnectionFactoryInterface> CreatePeerConnectionFactory(
+    rtc::Thread* network_thread,
+    rtc::Thread* worker_thread,
+    rtc::Thread* signaling_thread,
+    rtc::scoped_refptr<AudioDeviceModule> default_adm,
+    rtc::scoped_refptr<AudioEncoderFactory> audio_encoder_factory,
+    rtc::scoped_refptr<AudioDecoderFactory> audio_decoder_factory,
+    std::unique_ptr<VideoEncoderFactory> video_encoder_factory,
+    std::unique_ptr<VideoDecoderFactory> video_decoder_factory,
+    rtc::scoped_refptr<AudioMixer> audio_mixer,
+    rtc::scoped_refptr<AudioProcessing> audio_processing);
+
 // Create a new instance of PeerConnectionFactoryInterface with external audio
 // mixer.
 //