Turn iterator .end() DCHECK() into CHECK() for google_apis

Accessing an invalid iterator can sometimes be a security
issue and these checks are cheap, so upgrade to CHECKs.

For this CL instances were located with a weggli query
of `DCHECK(_ != _.end());` and some filtering of paths.

This CL was uploaded by git cl split.

R=nhiroki@chromium.org

Bug: 351745839
Change-Id: I4d9f892ffce441d643bc038bd3eff0ffb86e5b3f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5685437
Auto-Submit: Alex Gough <ajgo@chromium.org>
Reviewed-by: Hiroki Nakagawa <nhiroki@chromium.org>
Commit-Queue: Hiroki Nakagawa <nhiroki@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1324609}
NOKEYCHECK=True
GitOrigin-RevId: 20a5d5e2904b251e74bc44b4d95c4f576e19e909
1 file changed