Workaround for #24984 - Solve crashes when panicking / Hang Monitoring by using cargo's patch mechanism to work around a bug in libbacktrace
Temporarly patch backtrace-rs
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libbacktrace contains an error leading to invalid pointers when trying to backtrace a stacktrace.
These invalid pointers led to a crash, whenever a panic or Hang Monitoring happened (which is where the stack is captured).
Since fixing the issue properly at gcc will require some time, I've created a small and patched version of backtrace-rs, which will be used as patch here.
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix#24984
- [X] These changes do not require tests because they fix a native crash which is a) really obvious and b) shouldn't be a regular case.
Increase parallelism on Linux WPT testing
The time taken by each chunk is uneven, with WPT-1 the longest before this change at 30 ~ 45 minutes. This reduces it to 15 ~ 20 minutes.
Surprisingly, increasing the number of processes seems to also make `test_element_in_collection` in `/webdriver/tests/execute_script/cyclic.py` **unexpectedly pass**. This happened reliably in three different runs:
https://community-tc.services.mozilla.com/tasks/S9O27WJvSa6j2PSjcRcbBA/runs/2
Use filename instead of opened file descriptor when calling ZipFile
This should fix#25251
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Block the gstreamer plugin waiting for the next frame
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Get the GStreamer plugin to produce frames at the requested rate rather than relying on downstream elements to perform throttling.
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mach clean now finds the right virtualenv to remove
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mach clean now knows about the 00cf7452ef change and will remove _virtualenv2.7 appropriately
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implement composition event creation in Document.createEvent
Solved the problem mentioned in https://github.com/servo/servo/issues/24724#issuecomment-562326328
Add logic to create composition event for Document.createEvent. This resolved some WPT test failure, so updated the metadata as well
Ref: https://developer.mozilla.org/en-US/docs/Web/API/Document/createEvent
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Rename servosrc to servowebsrc
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Really fixes a name clash with servo-media. Really.
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Make `mach test-tidy --no-wpt` compatible with Python3
Make `mach test-tidy --no-wpt` compatible with Python3
See also #23607
After this pull request, all python files (except WPT) will be checked for Python3 syntax compatibility.
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adding .isConnected DOM attribute
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is_connected already existed for this concept and just needed to be hooked up to an IDL attribute.
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Took out the special mouseover cancel case
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eventtarget.rs was checking the event type to see if it was a mouseover; now it doesn't. Other special-case events like error and beforeunload go down other code paths entirely, so this one has no special cases left.
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Remove unnecessary thread in filereader, add stream TODO
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I think there are no benefits to queuing the various `FileReadingTask` from a thread, and reading the actual blob bytes are still done on the main-thread. We could try to move the reading off the main-thread(but note the `Blob` is not something you would want to move to another thread "as-is" since it's a `DomObject`), and I think we should just aim for implementing streams and follow the spec instead.
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