Fix unloading, active BC, and clearing js runtime
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Do not set the window to be the currently active one for the windowproxy as part of `load`, as it will be done later when the document activity is set. And doing it later means that when unload runs, it is with the unloaded pipeline as the active window.
Only nullify the window proxy if it's not used by another (currently-active) window.
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Enable webxr by default
This changes two things:
* enable WebXR by default, since it's not exactly an experimental technology in Servo anymore
* enable the glwindow webxr backend by default so it's easier to test WebXR on desktop nightlies
Since the glwindow pref is only checked in the glutin desktop port, enabling it for other ports does not hurt us at all and it removes a papercut for testing WebXR content on desktop.
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Async wasm compilation event loop integration
The PR contains changes related to binding the runnable dispatching in script_runtime and is part of the Asynchronous WebAssembly Compilation fix. This is the first step in the subsequent steps mentioned in the [wiki](https://github.com/servo/servo/wiki/Asynchronous-WebAssembly-compilation-project).
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Fix revoke blob url
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fix#24290
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Set response mime_type based on Content-Type
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Set the response's `mime_type` based on its `Content-Type` header whenever `Response::set_headers` is called. This ensures that `mime_type` is always consistent with `Content-Type`. The other reason for going with this approach is it relies on `extract_mime_type`: afbcbf75ea/components/script/dom/headers.rs (L260-L261)
Besides the consistency argument, I also expect that we'll update the `extract_mime_type` method to conform with its specification.
Another option I explored was adding a `set_mime_type` member to `Response` and calling that with the mime type from `Metadata::content_type` in `FetchResponseListener::process_response`. I decided against this since it expanded the interface of `Response` and didn't have the same benefits of the first option.
Fixes#24628.
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Fix loophole in messageport transfer
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Use TimerHandler IDL union type
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layout: Ensure abs-pos elements establish block formatting contexts
Updating #16310
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Reduce unnecesarily large borrow in script thread
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Make offscreen canvas rendering context use offscreen canvas' size; Consolidate size helpers
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Addresses issues raised in the review of PR #24518 and includes changes to 17 tests' metadata for those that now PASS.
Contains fixes in PR #24518:
Updated the offscreen canvas rendering context to use the offscreen canvas' size. This involved upgrading several methods to accept u64 sizes.
Additionally, the code in OffscreenCanvas::SetWidth() and OffscreenCanvas::SetHeight() was updated to send CanvasMsg::Recreate to the canvas paint thread.
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Add WebGL Transformfeedback support
Reference: https://www.khronos.org/registry/webgl/specs/latest/2.0/#3.7.15
cc @mmatyas @jdm @zakorgy
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Ensure all iframes are sized correctly at creation
Following in the path of #22395, these commits serve several purposes:
* prevent layout instability early during iframe loads caused by a succession of resize events
* reduce the complexity of determining what actual DPI and initial window size values are being used at startup
* ensure that all documents have a correct initial viewport size at creation
These changes fix problems that were exposed by the changes in #24462 but are independent of that PR.
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