* Rewrite constructors of `Blob` and `File` with `DataSlice` as argument
* Update WebIDL of `Blob` and `File`
* Implement missing interfaces of `File` (However, due to lack of working `ArrayBuffer/ArrayBufferView` in `Blob`, so it still differs from spec)
* Update WPT test `File-constructor.html`
Source-Repo: https://github.com/servo/servo
Source-Revision: 392135bd0c2f512a0d632a7d76e667bc9af8f4a7
This might be a bad idea, especially on the webidl side. However, we started talking about the idea that modelines are a lint error (https://github.com/servo/servo/issues/10719), and these changes would be required before enabling a modeline lint.
If it bitrots, it's easy to recreate with
```
find * -type f -exec sed '/- Mode:/d' -i {} +
find * -type f -exec sed '/ vim:/d' -i {} +
git checkout -- python/tidy/servo_tidy/tidy.py
git checkout -- python/tidy/servo_tidy_tests/spec.webidl
git commit -a
```
Source-Repo: https://github.com/servo/servo
Source-Revision: dff217c2e3ff0b77eeebf62d36c2bf57c044cf14
Extracted this out of #5649
This commit was created with the following commands:
```
find . -iname "*.webidl" -type f -print0 | xargs -0 sed -i '' 's/http:\(.*\)whatwg.org/https:\1whatwg.org/g'
```
```
find . -iname "*.rs" -type f -print0 | xargs -0 sed -i '' 's/http:\(.*\)whatwg.org/https:\1whatwg.org/g'
```
Source-Repo: https://github.com/servo/servo
Source-Revision: 4997d3a112354a407365fede1ab1944834a2e13c
