Validate string inputs to ParsedCookie mutators

Bug: 972412
Change-Id: I985783b4dcb695d4714dcd74246a185c94cd0825
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1652545
Reviewed-by: Maks Orlovich <[email protected]>
Commit-Queue: Dan McArdle <[email protected]>
Cr-Commit-Position: refs/heads/master@{#670254}
2 files changed