Navigation API: always resolve URLs using UTF-8
Follows whatwg/html#9756.
Fixed: 40283021
Change-Id: Iac654e94044fb97c4618599fee8ecedcd0efdb4d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5722413
Auto-Submit: Domenic Denicola domenic@chromium.org
Reviewed-by: Nate Chapin japhet@chromium.org
Commit-Queue: Nate Chapin japhet@chromium.org
Cr-Commit-Position: refs/heads/main@{#1332686}