Rename x509_util_ios_and_mac.h to x509_util_apple.h

Align with options like is_apple and BUILDFLAG(IS_APPLE). I'm told this
is the preferred name for shared macOS/iOS code these days, and this
file indeed wraps symbols common to all Apple platforms. (The history
here is that the macOS/iOS security APIs initially did not align, but
nowadays they match, if you avoid the deprecated macOS-only CSSM stuff,
and have a new enough macOS version.)

Change-Id: I983b325f310474031ec23f717a4207f286cb7e68
Reviewed-by: Elly Fong-Jones <>
Reviewed-by: Matt Mueller <>
Commit-Queue: David Benjamin <>
Reviewed-by: Sylvain Defresne <>
Cr-Commit-Position: refs/heads/main@{#1007631}
GitOrigin-RevId: 33a59b1c62b0e2b61be45fef4d707dedcb3c1e64
4 files changed