In order to implement HTMLInputElement::setValueAsDate, we need to implement
1. millisecond double value to ISODateTime conversion
2. ISODateTime to String conversion
This bug handles the step 1 above.
Created attachment 45441 [details]
style-queue ran check-webkit-style on attachment 45441 [details] without any errors.
This patch lacks tests. Perhaps it is only testable in combination with part 2, in which case I'd rather see the two combined into one patch with tests included.
Comment on attachment 45441 [details]
r- per comment above
Ok, I'm making testable patches.
I have made a new bug, Bug#33021.