add chunk size as restriction for function parseClearEncryptedSizes()

Without trunksize as restriction, function parseClearEncryptedSized()
can read the rest of file. If the file has a large number of saiz trunk,
large number of bytes will be copied, which can lead to high cost of
CPU time.

Bug: 124777526
Test: please see #3 and #8 in b/124777526: push senc.mp4 to devices's
sdcard, play with photo app, manuly print log. Also need to verify if
Dexter app (b/152531488) not crash.

Change-Id: I87f215cf04c5d002076e145f21c10556773f4bb2