Move bindings tests out of the style crate
This cuts in almost half the time to run:
```
touch components/style/lib.rs
./mach test-stylo
```
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Implement WebGL extensions
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This PR provides the base for implementing WebGL extensions. It comes with the following ones already implemented and passing all related WebGL conformance tests:
- OES_texture_float
- OES_texture_float_linear
- OES_texture_half_float
- OES_texture_half_float_linear
- OES_vertex_array_object
I'll submit other extensions like compressed textures in a separate PR to ease the review process. I included the 5 extensions in this PR because it's easier to show/review how the WebGL extension base works.
To pass all OES_texture_float_xxx tests I had to add some missing format conversions in WebGLRenderingContext.rs
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Stylo: Add support for grid-template-{rows,columns}
This has the implementation of grid's `<track-list>` nightmare.
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Using TransformStyle::Preserve3D
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The changes were reviewed previously as a part of WR update PRs, but then we decided to move them out.
r? @emilio
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Fix containing block size for absolute root element
The root element doesn't have a containing block, so use the viewport size instead of `self.base.absolute_cb`.
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Implement Houdini worklets
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This PR implements the current draft Houdini Worklets specification (https://drafts.css-houdini.org/worklets/).
The implementation is intended to provide a responsive environment for worklet execution, and in particular to ensure that the primary worklet executor does not garbage collect, and does not block loading module code. The implementation does this by providing a thread pool, and performing GC and module loading in a backup thread, not in the primary thread.
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Mutation Observer API
Rebased from #16668.
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Don't optimize display list for projective transforms
There are situations where elements are transformed from outside the
display list. With projective transforms it's currently difficult to
detect these. In those cases we just don't optimize the display list,
so that they will always be shown.
Fixes#13822.
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stylo: Pass Cached ImageValue from stylo back to gecko
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This is part 6 ~ part 9 patch in bug 1310885
gecko bug link:
https://bugzilla.mozilla.org/show_bug.cgi?id=1310885
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Root nodes for the duration of their CSS transitions
This ensures that we can pass a node address as part of the asynchronous
transition end notification, making it safe to fire the corresponding
DOM event on the node from the script thread. Without explicitly rooting
this node when the transition starts, we risk the node being GCed before
the transition is complete.
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Make cross-origin canvas drawing tests use a same-origin redirect.
These tests either pass or maintain existing known failures in Firefox and Chrome, and expose the problem in our current implementation that #15887 is addressing.
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This ensures that we can pass a node address as part of the asynchronous
transition end notification, making it safe to fire the corresponding
DOM event on the node from the script thread. Without explicitly rooting
this node when the transition starts, we risk the node being GCed before
the transition is complete.
