LibWeb: Fix FileAPI constructor

[shlyakpavel]

This fixes http://wpt.live/FileAPI/file/File-constructor.any.html

[tcl3]

Could you update your commit message to be a bit more descriptive of the change you've made? Something like LibWeb: Update FileAPI File constructor to follow the latest spec steps would work here (if that's within the character limit).

[stelar7]

Please make sure this doesnt cause any new fails on https://wpt.live/mimesniff/mime-types/parsing.any.html as this code was originally changed to pass tests there😅

[shlyakpavel]

@stelar7 should I import that WPT with this PR?

[stelar7]

@stelar7 should I import that WPT with this PR?

We dont pass everything there, so im not sure its possible.. but it should atleast still be 1894 / 1898 tests passing

[shlyakpavel]

@stelar7 there are regressions :(

[tcl3]

@Stellar7 Do you know if there's an existing issue for this that we can reference in the code?

[stelar7]

@stelar7 Do you know if there's an existing issue for this that we can reference in the code?

This is probably the closest one w3c/FileAPI#43

[github-actions]

This pull request has been automatically marked as stale because it has not had recent activity. It will be closed in 7 days if no further activity occurs. Thank you for your contributions!

[shlyakpavel]

This should not be closed yet, as the issue is not resolved, and whenever spec issue is resolved, I update this to both follow the spec and WPTs

[github-actions]

This pull request has been automatically marked as stale because it has not had recent activity. It will be closed in 7 days if no further activity occurs. Thank you for your contributions!