MSE and non-MSE: Relax mp4a mimetype to allow leading 0 in aud-oti
Adds codec string support for mp4a.40.02 and mp4a.40.05 to match
existing support (or lack thereof) for mp4a.40.2 and mp4a.40.5,
respectively.
To satisfy presubmit, also includes result of $ git cl format net
BUG=440607
R=servolk@chromium.org,rsleevi@chromium.org,dalecurtis@chromium.org
TEST=Updated MediaCanPlayTypeTest.CodecSupportTest_*
Review URL: https://codereview.chromium.org/
791863002
Cr-Commit-Position: refs/heads/master@{#307743}