Merge "Better detection of MP4 files"

Merge "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}
(cherry picked from commit 169982cfc8c9619b413f133606cc832845e5d069)

Review-Url: https://codereview.chromium.org/2811363002 .
Cr-Commit-Position: refs/branch-heads/3029@{#680}
Cr-Branched-From: 939b32ee5ba05c396eef3fd992822fcca9a2e262-refs/heads/master@{#454471}
Committed: https://chromium.googlesource.com/chromium/src/+/d78d8e1158db3c9feef2131617ab011098cc1f1d

[jrummell, 2017-04-12 18:24:17]

Description was changed from

==========
Merge "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}
(cherry picked from commit 169982cfc8c9619b413f133606cc832845e5d069)
==========

to

==========
Merge "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}
(cherry picked from commit 169982cfc8c9619b413f133606cc832845e5d069)

Review-Url: https://codereview.chromium.org/2811363002 .
Cr-Commit-Position: refs/branch-heads/3029@{#680}
Cr-Branched-From:
939b32ee5ba05c396eef3fd992822fcca9a2e262-refs/heads/master@{#454471}
Committed:
https://chromium.googlesource.com/chromium/src/+/d78d8e1158db3c9feef2131617ab...
==========

[jrummell, 2017-04-12 18:24:19]

Committed patchset #1 (id:1) manually as
d78d8e1158db3c9feef2131617ab011098cc1f1d.