Implement discarding Document objects to reclaim space.
<!-- Please describe your changes on the following line: -->
This PR implements document discarding. Active documents are kept alive strongly, but inactive documents are only kept alive weakly. When a document is GCd, it is marked as discarded, and if it is every reactivated, a reload of the URL is triggered.
Note that this PR is pretty aggressive about discarding, and can any inactive document (other than those being kept alive by other same-origin pipelines). We might want to damp it down a bit.
Also note that this interacts with browser.html in that the reloading triggered by reactivating a document triggers mozbrowser events.
To test this, I added a `-Zdiscard-inactive-documents` debug flag, which discards all inactive documents, even ones which are reachable through other same-origin pipelines.
---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: -->
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix#14262.
- [X] These changes do not require tests because we should be able to use the existing tests with `-Zdiscard-inactive-documents`.
<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->
<!-- Reviewable:start -->
---
This change is [<img src="https://reviewable.io/review_button.svg" height="34" align="absmiddle" alt="Reviewable"/>](https://reviewable.io/reviews/servo/servo/14312)
<!-- Reviewable:end -->
Avoid restyling elements that aren't in a document
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix#14480
- [X] There are tests for these changes
<!-- Reviewable:start -->
---
This change is [<img src="https://reviewable.io/review_button.svg" height="34" align="absmiddle" alt="Reviewable"/>](https://reviewable.io/reviews/servo/servo/14845)
<!-- Reviewable:end -->
Properly dispatch keypress event
<!-- Please describe your changes on the following line: -->
This was an attempt to fix#14659. It turned out that the problem wasn't what I thought it was. So, I didn't fix that. On the brighter side, this fixes two related issues.
- Previously, we were unable to launch `keypress` events from `input` and `textarea` elements, because [we'd been cancelling](1327ebd52f/components/script/dom/htmlinputelement.rs (L1120-L1124)) the key events, so that they don't trigger window navigation - #8400). I've introduced an enum to represent an additional state to an event's cancellation.
- [According to the spec](https://w3c.github.io/uievents/#keypress-event-order), `keypress` (if available) should be dispatched immediately after `keydown`, and it should be followed by `input`. Canceling `keypress` should also cancel `input`. But, we'd been dispatching `input` before `keypress`. We now dispatch `input` once the `keypress` event is on the respective elements.
---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: -->
- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
<!-- Either: -->
- [x] These changes do not require tests because it's a refactor?
<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->
r? @jdm or anyone interested
<!-- Reviewable:start -->
---
This change is [<img src="https://reviewable.io/review_button.svg" height="34" align="absmiddle" alt="Reviewable"/>](https://reviewable.io/reviews/servo/servo/14738)
<!-- Reviewable:end -->
replace match by if let statements if possible
<!-- Please describe your changes on the following line: -->
Hi there,
This PR replaces `match` statements by `if let` when possible.
Thanks for reviewing
---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: -->
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix#14788
<!-- Either: -->
- [ ] There are tests for these changes OR
- [X] These changes do not require tests because this PR is a code cleanup patch.
<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->
<!-- Reviewable:start -->
---
This change is [<img src="https://reviewable.io/review_button.svg" height="34" align="absmiddle" alt="Reviewable"/>](https://reviewable.io/reviews/servo/servo/14796)
<!-- Reviewable:end -->
Error handled canvas closing
<!-- Please describe your changes on the following line: -->
Correctly handled error when Canvas doesn't close properly, with a descriptive warning.
---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: -->
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix#14002 (github issue number if applicable).
<!-- Either: -->
- [ ] There are tests for these changes OR
- [X] These changes do not require tests because minor changes don't require tests.
<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->
<!-- Reviewable:start -->
---
This change is [<img src="https://reviewable.io/review_button.svg" height="34" align="absmiddle" alt="Reviewable"/>](https://reviewable.io/reviews/servo/servo/14762)
<!-- Reviewable:end -->
Update links to DOM Parsing specification
Changed links from https://domparsing.spec.whatwg.org/ to
https://w3c.github.io/DOM-Parsing/.
<!-- Please describe your changes on the following line: -->
---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: -->
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix#14758
<!-- Either: -->
- [X] These changes do not require tests because these are link update
<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->
<!-- Reviewable:start -->
---
This change is [<img src="https://reviewable.io/review_button.svg" height="34" align="absmiddle" alt="Reviewable"/>](https://reviewable.io/reviews/servo/servo/14760)
<!-- Reviewable:end -->
Rewrote websocket array buffer handling to typed array API
<!-- Please describe your changes on the following line: -➜
Replaced existing code for handling `BinaryType::Arraybuffer` from `JS_NewArrayBuffer` to `Uint8Array::create`.
---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: -->
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix#14675 (github issue number if applicable).
<!-- Either: -->
- [X] These changes do not require tests because they replace an existing implementation
<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->
I am not certain the test suite will adequately verify my implementation as I am not familiar with the architecture. It compiles and passes the current tests.
<!-- Reviewable:start -->
---
This change is [<img src="https://reviewable.io/review_button.svg" height="34" align="absmiddle" alt="Reviewable"/>](https://reviewable.io/reviews/servo/servo/14718)
<!-- Reviewable:end -->
Fix inline layout of table cells impacted by rowspan
This is part of the fix for #11297. This PR fixes the inline layout of table cells impacted by row-spanning cells from previous rows. A separate PR to follow will fix the table block size calculations to account for rowspan.
This PR doesn't yet include any test changes. If it doesn't cause any existing tests to pass, I will add a new test to it.
r? @pcwalton
<!-- Reviewable:start -->
---
This change is [<img src="https://reviewable.io/review_button.svg" height="34" align="absmiddle" alt="Reviewable"/>](https://reviewable.io/reviews/servo/servo/14518)
<!-- Reviewable:end -->
Rewrite Crypto::GetRandomValues to use typed array API
<!-- Please describe your changes on the following line: -->
Rewrite Crypto::GetRandomValues to use typed array API
---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: -->
- [X] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [X] These changes fix#14673 (github issue number if applicable).
<!-- Either: -->
- [X] There are tests for these changes
<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->
<!-- Reviewable:start -->
---
This change is [<img src="https://reviewable.io/review_button.svg" height="34" align="absmiddle" alt="Reviewable"/>](https://reviewable.io/reviews/servo/servo/14730)
<!-- Reviewable:end -->
Warn when a timer event is processed for a discarded document.
Turn a panic into a warning for a situation that is easy to hit in web content.
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix#14677
- [X] There are tests for these changes
<!-- Reviewable:start -->
---
This change is [<img src="https://reviewable.io/review_button.svg" height="34" align="absmiddle" alt="Reviewable"/>](https://reviewable.io/reviews/servo/servo/14679)
<!-- Reviewable:end -->
Updating GATTServer's Connect/Disconnect calls
<!-- Please describe your changes on the following line: -->
Added the missing [Step 5.2.3](https://github.com/servo/servo/compare/master...szeged:connect-disconnect-update#diff-1dbe29f87740f5aec93f37adbecace6cR213) to the `connect` function.
Updated the [disconnect](https://webbluetoothcg.github.io/web-bluetooth/#dom-bluetoothremotegattserver-disconnect) function to its current state in the specification, including the `clean_up_disconnected_device` and the `garbage_collect_the connection` functions.
Added new tests for checking the invalid state of JS objects after disconnection.
---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: -->
- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [x] There are tests for these changes
<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->
<!-- Reviewable:start -->
---
This change is [<img src="https://reviewable.io/review_button.svg" height="34" align="absmiddle" alt="Reviewable"/>](https://reviewable.io/reviews/servo/servo/14612)
<!-- Reviewable:end -->
