chrome://media-internals: update MediaInternals when devices capabilities are enumerated.

media/video/capture/video_capture_types.h

Index: media/video/capture/video_capture_types.h
diff --git a/media/video/capture/video_capture_types.h b/media/video/capture/video_capture_types.h
index ec57c451372831580b5476befa53d4acf6398982..f3fa313ee5821f362bbf837d21c47e785c800b26 100644
--- a/media/video/capture/video_capture_types.h
+++ b/media/video/capture/video_capture_types.h
@@ -36,7 +36,7 @@ enum ResolutionChangePolicy {
   // Capture device outputs a fixed resolution all the time. The resolution of
   // the first frame is the resolution for all frames.
   // It is implementation specific for the capture device to scale, letter-box
-  // and pillar-box. The only gurantee is that resolution will never change.
+  // and pillar-box. The only guarantee is that resolution will never change.
   RESOLUTION_POLICY_FIXED,
 
   // Capture device outputs frames with dynamic resolution. The width and height