Temporary implementation of Canvas.MeasureText
@jdm: that will help with the babylonjs demos. Another approach is to implement that in JS and add it to the demos.
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Do not allow XR session on non user-activated events
This sets the thread in "user interaction mode" when the dispatched event is trusted. I also tried an approach where we would not rely on the dispatched event but just set "user interaction mode" when we get a compositor event (which, we can assume, are only user generated). That worked as well.
Fixes#23787.
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Implement PerformanceNavigation interface
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This is my first attempt. Please let me know if I should change anything.
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Let resources timing entries be added to performance entry buffer.
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Update relevant tests to properly report and expect failure.
These changes are the first step for #23328. Not sure if I would say they _fix_ the issue.
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Note: The WheelEvent interface supports rotation in all 3 spatial
dimensions. This implementation only supports two due to limitations
in the Glutin compositor.
The wheelevent interface is a dom interface that triggers for any
attached device that can rotate in one or more spatial dimensions.
Traditionally this is the mouse wheel though other devices could be
used as well. E.g. the trackball on a trackball mouse.
Change XHRContext and resource timing information to use request URL
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Change resource timing information to return the URL used to create the XHR and store the URL in XHRContext.
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Make webgl behave better with session history
This prevents the compositor from animating pages that are not actually visible, so pages using webgl do not needlessly impact the performance of the rest of the browser. Additionally, this fixes a problem that was alluded to in [this code](b5228c098b/src/draw_buffer.rs (L282-L285)), causing Servo to delete arbitrary resources when a GC occurred in content that used three.js.
- [x] `./mach build -d` does not report any errors
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- [x] These changes fix#22987 and fix#22977 and fix#20934 and fix#20953 and fix#20930 and fix#20950 and fix#20924
- [x] There are tests for these changes
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