Better detection of MP4 files

Better detection of MP4 files

Relax the restrictions on the list of top-level boxes so that MP4 files are
more reliably detected.

BUG=709166
TEST=updated test passes

Review-Url: https://codereview.chromium.org/2797133009
Cr-Commit-Position: refs/heads/master@{#462759}
Committed: https://chromium.googlesource.com/chromium/src/+/169982cfc8c9619b413f133606cc832845e5d069

[jrummell, 2017-04-06 22:41:21]

jrummell@chromium.org changed reviewers:
+ dalecurtis@chromium.org

[jrummell, 2017-04-06 22:41:21]

PTAL.

[DaleCurtis, 2017-04-06 22:53:03]

Nice! lgtm

[DaleCurtis, 2017-04-06 22:53:20]

We should merge back to m58 if this reduces counts on canary.

[jrummell, 2017-04-07 02:38:31]

The CQ bit was checked by jrummell@chromium.org

[commit-bot: I haz the power, 2017-04-07 02:39:05]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-04-07 05:07:42]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1491532711650140, "parent_rev":
"f53c772224985607c8398d5b751eda4b9bccec82", "commit_rev":
"169982cfc8c9619b413f133606cc832845e5d069"}

[commit-bot: I haz the power, 2017-04-07 05:09:11]

Description was changed from

==========
Better detection of MP4 files

Relax the restrictions on the list of top-level boxes so that MP4 files are
more reliably detected.

BUG=709166
TEST=updated test passes
==========

to

==========
Better detection of MP4 files

Relax the restrictions on the list of top-level boxes so that MP4 files are
more reliably detected.

BUG=709166
TEST=updated test passes

Review-Url: https://codereview.chromium.org/2797133009
Cr-Commit-Position: refs/heads/master@{#462759}
Committed:
https://chromium.googlesource.com/chromium/src/+/169982cfc8c9619b413f133606cc...
==========

[commit-bot: I haz the power, 2017-04-07 05:09:12]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/169982cfc8c9619b413f133606cc...