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