| Index: content/public/common/media_stream_request.cc
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| diff --git a/content/public/common/media_stream_request.cc b/content/public/common/media_stream_request.cc
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| index d1dd847e264962808505faff909dc488e7b7aed4..adef43281d7b2cdd57705e57bffd299935ccc913 100644
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| --- a/content/public/common/media_stream_request.cc
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| +++ b/content/public/common/media_stream_request.cc
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| @@ -11,14 +11,21 @@ namespace content {
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|  
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|  bool IsAudioInputMediaType(MediaStreamType type) {
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|    return (type == MEDIA_DEVICE_AUDIO_CAPTURE ||
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| -          type == content::MEDIA_TAB_AUDIO_CAPTURE ||
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| -          type == content::MEDIA_DESKTOP_AUDIO_CAPTURE);
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| +          type == MEDIA_TAB_AUDIO_CAPTURE ||
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| +          type == MEDIA_DESKTOP_AUDIO_CAPTURE);
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|  }
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|  
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|  bool IsVideoMediaType(MediaStreamType type) {
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|    return (type == MEDIA_DEVICE_VIDEO_CAPTURE ||
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| -          type == content::MEDIA_TAB_VIDEO_CAPTURE ||
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| -          type == content::MEDIA_DESKTOP_VIDEO_CAPTURE);
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| +          type == MEDIA_TAB_VIDEO_CAPTURE ||
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| +          type == MEDIA_DESKTOP_VIDEO_CAPTURE);
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| +}
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| +
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| +bool IsScreenCaptureMediaType(MediaStreamType type) {
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| +  return (type == MEDIA_TAB_AUDIO_CAPTURE ||
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| +          type == MEDIA_TAB_VIDEO_CAPTURE ||
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| +          type == MEDIA_DESKTOP_AUDIO_CAPTURE ||
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| +          type == MEDIA_DESKTOP_VIDEO_CAPTURE);
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|  }
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|  
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|  MediaStreamDevice::MediaStreamDevice()
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| 
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