Instead of rendering a reference HTML page that wraps an <img> tag
pointing to a PNG, Screenshot tests now load the expected PNG directly
from disk and compare it against the rendered screenshot. This
eliminates the indirection of loading and rendering a second page just
to display a static image.
This also means --rebaseline now works for Screenshot tests, generating
the expected PNG automatically instead of requiring manual screenshot
capture and placement.
Changes:
- Add TestMode::Screenshot with its own collector and runner
- Move PNGs from Screenshot/images/ to Screenshot/expected/ with
normalized names matching input filenames
- Remove all 92 reference HTML wrapper files and the images/
directory
- Remove <link rel="match"> from all 94 Screenshot input HTML
files
- Update add_libweb_test.py Screenshot boilerplate accordingly
- Add Screenshot mode to results viewer image comparison tabs
This allows Promises (including internal ones, like in Streams) and
FinalizationRegistry to work while scripting is disabled.
These were removed in the spec in support of WebDriver BiDi being able
to enable and disable scripting.
https://github.com/whatwg/html/commit/905b7218
This allows Fetch to work while scripting is disabled, due to its use
of Streams. This was noticeable if you disabled scripting in the UI,
or had a sandboxed iframe with scripting disabled.
There is more work to use job settings instead of realm inside these
hooks, but that's a separate issue.
Fixes https://github.com/LadybirdBrowser/ladybird/issues/7409
Fixes https://github.com/LadybirdBrowser/ladybird/issues/3729
