Roll Media App from HerPX5kPi... to q4c5UkB_m...

Release_Notes: http://go/media_app-x20/relnotes/Main/media_app_202103280700_RC00.html

https://chrome-infra-packages.appspot.com/p/chromeos_internal/apps/media_app/app/+/q4c5UkB_mGNFs6-MYBG9wfHiVuomSNeI-szBxCVlvawC

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://skia-autoroll.corp.goog/r/media-app-chromium-autoroll
Please CC media-app@grotations.appspotmail.com on the revert to ensure that a human
is aware of the problem.

To report a problem with the AutoRoller itself, please file a bug:
https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+doc/master/autoroll/README.md

Cq-Include-Trybots: luci.chrome.try:linux-chromeos-chrome
Bug: None
Tbr: media-app@grotations.appspotmail.com
Change-Id: I213d317d8ada0fe14250d2b04204081c5d9c404a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2790066
Commit-Queue: chromium-internal-autoroll <chromium-internal-autoroll@skia-corp.google.com.iam.gserviceaccount.com>
Bot-Commit: chromium-internal-autoroll <chromium-internal-autoroll@skia-corp.google.com.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#867072}

DEPS

@@ -1666,7 +1666,7 @@ deps = {
     'packages': [
       {
         'package': 'chromeos_internal/apps/media_app/app',
-        'version': 'HerPX5kPiZcf3Z1X2Mr4q2qi9Y-8dCxlANBhoqU0Uf4C',
+        'version': 'q4c5UkB_mGNFs6-MYBG9wfHiVuomSNeI-szBxCVlvawC',
       },
     ],
     'condition': 'checkout_chromeos and checkout_src_internal',