| Index: webrtc/modules/audio_device/ios/objc/RTCAudioSession+Private.h
 | 
| diff --git a/webrtc/modules/audio_device/ios/objc/RTCAudioSession+Private.h b/webrtc/modules/audio_device/ios/objc/RTCAudioSession+Private.h
 | 
| index 523a4c10941fcf9a414c473bb798fb6915cf7bc2..fb311853b79afab72c83db3d0dd524b405ba3fe2 100644
 | 
| --- a/webrtc/modules/audio_device/ios/objc/RTCAudioSession+Private.h
 | 
| +++ b/webrtc/modules/audio_device/ios/objc/RTCAudioSession+Private.h
 | 
| @@ -14,9 +14,6 @@ NS_ASSUME_NONNULL_BEGIN
 | 
|  
 | 
|  @interface RTCAudioSession ()
 | 
|  
 | 
| -/** The lock that guards access to AVAudioSession methods. */
 | 
| -@property(nonatomic, strong) NSRecursiveLock *lock;
 | 
| -
 | 
|  /** The delegates. */
 | 
|  @property(nonatomic, readonly) NSSet *delegates;
 | 
|  
 | 
| 
 |