Begin adding support for tab mirroring via the MediaStream audio/video capturing

chrome/browser/ui/media_stream_infobar_delegate.h

Index: chrome/browser/ui/media_stream_infobar_delegate.h
diff --git a/chrome/browser/ui/media_stream_infobar_delegate.h b/chrome/browser/ui/media_stream_infobar_delegate.h
index 62981983b475e77bb1a3c51b6c4584ec53a28ef8..0d0d720713cd78641b88faa6f870dc102ac1e376 100644
--- a/chrome/browser/ui/media_stream_infobar_delegate.h
+++ b/chrome/browser/ui/media_stream_infobar_delegate.h
@@ -39,8 +39,13 @@ class MediaStreamInfoBarDelegate : public InfoBarDelegate {
 
   // Returns the security origin (e.g. "www.html5rocks.com") at the origin
   // of this request.
-  const GURL& GetSecurityOrigin() const;
+  const std::string& GetSecurityOriginSpec() const;
 
+  // These determine whether all audio (or video) devices (i.e., those returned
+  // by GetAudioDevices() and GetVideoDevices()) can be auto-accepted in the
+  // future should the user accept them this time.
+  bool IsSafeToAlwaysAllowAudio() const;
+  bool IsSafeToAlwaysAllowVideo() const;
 
   // Callbacks to handle accepting devices or denying the request. |audio_id|
   // and |video_id| are the device IDs of the accepted audio and video devices.