doc: chrome://media-internals is useful for camera issues

BUG=None

No-try: True
Change-Id: I6d1b9b99dce65d6382cbb61756e71989f5f3808a
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/195326
Commit-Queue: Philipp Hancke <philipp.hancke@googlemail.com>
Reviewed-by: Markus Handell <handellm@webrtc.org>
Reviewed-by: Henrik Andreassson <henrika@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#32752}
diff --git a/docs/bug-reporting.md b/docs/bug-reporting.md
index 885d680..4e5cbda 100644
--- a/docs/bug-reporting.md
+++ b/docs/bug-reporting.md
@@ -106,6 +106,9 @@
     with the unencrypted RTP traffic. This can by replayed using the video_replay
     tool from the rtc_tools directory.
 
+  * For problem with the webcam, a dump or screenshot of the "Video Capture" tab
+    in chrome://media-internals.
+
 ### Filing a Security Bug
 
 The WebRTC team takes security very seriously. If you find a vulnerability in