diff --git a/webrtc/sdk/objc/Framework/Classes/PeerConnection/RTCMediaConstraints.mm b/webrtc/sdk/objc/Framework/Classes/PeerConnection/RTCMediaConstraints.mm
index 3b9d845841..c686b5643c 100644
--- a/webrtc/sdk/objc/Framework/Classes/PeerConnection/RTCMediaConstraints.mm
+++ b/webrtc/sdk/objc/Framework/Classes/PeerConnection/RTCMediaConstraints.mm
@@ -35,6 +35,15 @@ NSString * const kRTCMediaConstraintsLevelControl =
 NSString * const kRTCMediaConstraintsAudioNetworkAdaptorConfig =
     @(webrtc::MediaConstraintsInterface::kAudioNetworkAdaptorConfig);
 
+NSString * const kRTCMediaConstraintsIceRestart =
+    @(webrtc::MediaConstraintsInterface::kIceRestart);
+NSString * const kRTCMediaConstraintsOfferToReceiveAudio =
+    @(webrtc::MediaConstraintsInterface::kOfferToReceiveAudio);
+NSString * const kRTCMediaConstraintsOfferToReceiveVideo =
+    @(webrtc::MediaConstraintsInterface::kOfferToReceiveVideo);
+NSString * const kRTCMediaConstraintsVoiceActivityDetection =
+    @(webrtc::MediaConstraintsInterface::kVoiceActivityDetection);
+
 NSString * const kRTCMediaConstraintsValueTrue =
     @(webrtc::MediaConstraintsInterface::kValueTrue);
 NSString * const kRTCMediaConstraintsValueFalse =
diff --git a/webrtc/sdk/objc/Framework/Headers/WebRTC/RTCMediaConstraints.h b/webrtc/sdk/objc/Framework/Headers/WebRTC/RTCMediaConstraints.h
index d57231542d..26a116888a 100644
--- a/webrtc/sdk/objc/Framework/Headers/WebRTC/RTCMediaConstraints.h
+++ b/webrtc/sdk/objc/Framework/Headers/WebRTC/RTCMediaConstraints.h
@@ -14,6 +14,7 @@
 
 NS_ASSUME_NONNULL_BEGIN
 
+/** Constraint keys for media sources. */
 RTC_EXTERN NSString * const kRTCMediaConstraintsMinAspectRatio;
 RTC_EXTERN NSString * const kRTCMediaConstraintsMaxAspectRatio;
 RTC_EXTERN NSString * const kRTCMediaConstraintsMaxWidth;
@@ -28,6 +29,13 @@ RTC_EXTERN NSString * const kRTCMediaConstraintsLevelControl;
  */
 RTC_EXTERN NSString * const kRTCMediaConstraintsAudioNetworkAdaptorConfig;
 
+/** Constraint keys for generating offers and answers. */
+RTC_EXTERN NSString * const kRTCMediaConstraintsIceRestart;
+RTC_EXTERN NSString * const kRTCMediaConstraintsOfferToReceiveAudio;
+RTC_EXTERN NSString * const kRTCMediaConstraintsOfferToReceiveVideo;
+RTC_EXTERN NSString * const kRTCMediaConstraintsVoiceActivityDetection;
+
+/** Constraint values for Boolean parameters. */
 RTC_EXTERN NSString * const kRTCMediaConstraintsValueTrue;
 RTC_EXTERN NSString * const kRTCMediaConstraintsValueFalse;