Blobs support typed arrays now
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Blobs support typed arrays now, the relevant test were modified
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CounterBound::Integer made to store an Integer
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Don't use unsafe Heap::new constructor
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Pulls https://github.com/servo/rust-mozjs/pull/398 and aims to close https://github.com/servo/rust-mozjs/issues/343.
We can't convert from `JSVal` to `Heap<JSVal>` safely (due to GC barriers we can't move Heap value after changing its underlying value to something meaningful, e.g. non-null or non-undefined), so I decided to also wrap the Heap values in a Box (and in dictionaries in RootedTraceableBox, see https://github.com/servo/servo/pull/20265#issuecomment-372838379 and the issue for more details) in dictionaries.
Since we allocate more to be safe, I think it'd be good to also do some sort of a JS perf run, if there is any to see if there's any significant overhead.
r? @jdm
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Use typed coordinates more
Requires https://github.com/servo/servo/pull/19895
We use Size2D and Point2D across compositing, constellation and script, loosing the type of pixels we use (DevicePixel, DeviceIndepententPixel or CSSPixel) along the way, which might lead to bugs like `window.outerHeight` not taking into account the page zoom (using DeviceIndepententPixel instead of CSSPixel).
This should make the situation a bit better.
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We use Size2D and Point2D across compositing, constellation and script,
losing the type of pixels we use (DevicePixel, DeviceIndepententPixel
or CSSPixel) along the way, which might lead to bugs like
window.outerHeight not taking into account the page zoom (using
DeviceIndepententPixel instead of CSSPixel).
Update the MULTIPROCESS static when changing default options
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When the options are set not from the command line but by calling `set_defaults()` which is common for embedders, the MULTIPROCESS static is not set, and so the setting is ignored. This patch fixes that.
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Support JS typed arrays as arguments and in WebIDL unions
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Supersedes #20205.
This brings support to receiving typed arrays as function arguments (those are stack-rooted with CustomAutoRooter) and also being a member of a union (which is basically heap-rooted? similarly to other webidl unions).
This is based on my other PR #20265 (which means it has to pull an external rust-mozjs branch and contains some also slightly unrelated changes here) since it shares `RootedTraceableBox::from_box` here and some other additional changes at rust-mozjs, but it can be easily separated if needed.
I tried adding support to nullable typed arrays but couldn't work around an issue of codegen always sticking a "OrNull" at the end of my type (presumably because of [this](https://github.com/servo/servo/blob/master/components/script/dom/bindings/codegen/parser/WebIDL.py#L2241)?). How would I go about avoiding the suffix with nullable arguments?
If we were to add also support for nullable typed arrays then I think we wouldn't be blocked anymore on this in WebGL 1.0.
r? @jdm
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