| Index: webrtc/api/peerconnectioninterface.h | 
| diff --git a/webrtc/api/peerconnectioninterface.h b/webrtc/api/peerconnectioninterface.h | 
| index 3757dad8bb0916a006057a8ff29d3e942641c5e1..e28a27e20e09de613e3bc4575d84ee89e3cafbd7 100644 | 
| --- a/webrtc/api/peerconnectioninterface.h | 
| +++ b/webrtc/api/peerconnectioninterface.h | 
| @@ -301,6 +301,9 @@ class PeerConnectionInterface : public rtc::RefCountInterface { | 
| rtc::Optional<bool> enable_dtls_srtp; | 
| int ice_candidate_pool_size = 0; | 
| bool prune_turn_ports = false; | 
| +    // If set to true, this means the ICE transport should presume TURN-to-TURN | 
| +    // candidate pairs will succeed, even before a binding response is received. | 
| +    bool presume_writable_when_fully_relayed = false; | 
| }; | 
|  | 
| struct RTCOfferAnswerOptions { | 
|  |