| Index: Source/modules/mediastream/RTCDTMFSender.idl
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| diff --git a/Source/modules/mediastream/RTCDTMFSender.idl b/Source/modules/mediastream/RTCDTMFSender.idl
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| index c6f6076df84442e065c7c67b5ba83b317e4a6a4a..b2dcc8fc1a74d7bc7bf179336b8393520a9b38e7 100644
 | 
| --- a/Source/modules/mediastream/RTCDTMFSender.idl
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| +++ b/Source/modules/mediastream/RTCDTMFSender.idl
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| @@ -34,7 +34,7 @@
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|      readonly attribute long duration;
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|      readonly attribute long interToneGap;
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|  
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| -    [RaisesException] void insertDTMF(DOMString tones, optional long duration, optional long interToneGap);
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| +    [RaisesException] void insertDTMF(DOMString tones, optional long duration = 100, optional long interToneGap = 50);
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|  
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|      attribute EventHandler ontonechange;
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|  };
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| 
 |