Safe parsing of HEIF framecount information

Bug: 215002587
Test: POC described in bug
Change-Id: I92f8fdfe860cb360fb0ae099db3c92776ba7390f
(cherry picked from commit e89e632f9aa04e15291ee096b3152b40474a993d)
(cherry picked from commit 616bd340ecded759720199bcf5b8562e0fdf3f59)
Merged-In:I92f8fdfe860cb360fb0ae099db3c92776ba7390f
1 file changed