Update media/ directories in PRESUBMIT.py according to command.

$ for i in `find media/ -maxdepth 1 -type d|sort`; do    echo -n "-- $i ";    (cd $i; git grep -nP 'base::(Bind\(|(Callback<|Closure))'|wc -l);  done
-- media/ 294
-- media/audio 0
-- media/base 26
-- media/blink 17
-- media/capabilities 0
-- media/capture 0
-- media/cast 77
-- media/cdm 19
-- media/device_monitors 4
-- media/ffmpeg 0
-- media/filters 55
-- media/formats 5
-- media/fuchsia 0
-- media/gpu 41
-- media/learning 0
-- media/midi 0
-- media/mojo 48
-- media/muxers 0
-- media/parsers 0
-- media/remoting 0
-- media/renderers 2
-- media/test 0
-- media/tools 0
-- media/video 0
-- media/webrtc 0

This is part of the base::Callback migration.

Context: http://doc/1J4N3V5UmzZL9BZGNrn95E4xJu4cz3ynbg21zXR-J_qA#heading=h.uxpxu8vg4k4r

Bug: 714018
Change-Id: Ifb26a1ea4dc1ac170695b178343f33293883fe41
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2098686Reviewed-by: Daniel Cheng <dcheng@chromium.org>
Reviewed-by: danakj <danakj@chromium.org>
Commit-Queue: Daniel Cheng <dcheng@chromium.org>
Auto-Submit: Jose Lopes <jabolopes@google.com>
Cr-Commit-Position: refs/heads/master@{#749692}

PRESUBMIT.py

@@ -380,22 +380,16 @@ _NOT_CONVERTED_TO_MODERN_BIND_AND_CALLBACK = '|'.join((
   '^ios/web/',
   '^ios/web_view/',
   '^ipc/',
-  '^media/audio/',
   '^media/base/',
   '^media/blink/',
-  '^media/capture/',
   '^media/cast/',
   '^media/cdm/',
   '^media/device_monitors/',
-  '^media/ffmpeg/',
   '^media/filters/',
   '^media/formats/',
   '^media/gpu/',
   '^media/mojo/',
-  '^media/muxers/',
-  '^media/remoting/',
   '^media/renderers/',
-  '^media/test/',
   '^net/',
   '^ppapi/proxy/',
   '^ppapi/shared_impl/',