This is needed to correctly handle files with trailing non-MP3 data
(which is indicated by the length in the `Info` frame being shorter than
the overall length of the file).
The test file was generated by appending 150kB of `DEADBEEF` onto the
end of `test-cbr-info-header.mp3`, and the test asserts that the
extracted samples are identical.
Issue: androidx/media#1480
PiperOrigin-RevId: 658727595
(cherry picked from commit b09cea9e3a3f9a039b77c6e6db3ee5f450becc50)
eb19aefa57