Request Document: go/android3p
For CL Reviewers: go/android3p#reviewing-a-cl
For Build Team: go/ab-third-party-imports

Bug: b/370957658
Original import of the code can be found at: https://googleplex-android.googlesource.com/platform/external/rust/crates/cbindgen/+/refs/heads/third-party-review.
Security Questionnaire: b/370957658#comment1
Test: Build and run cbindgen

Change-Id: Ia9d3ea89b9d6bdc7acba33410480b1310b280fe3