This patch makes the MallocSizeOf stuff in Stylo work more like the HeapSizeOf
stuff already in Servo, except better. In particular, it adds deriving support
for MallocSizeOf, which will make it easier to improve coverage.
The patch does the following.
- Combines servo/components/style/stylesheets/memory.rs and the heapsize crate
into a new crate, malloc_size_of.
- Forks the heapsize_derive crate, calling it malloc_size_of, so that
MallocSizeOf can be derived.
- Both the new crates have MIT/Apache licenses, like heapsize, in case they are
incorporated into heapsize in the future.
- Renames the methods within MallocSizeOf and the related traits so they are
more concise.
- Removes MallocSizeOfWithGuard.
- Adds `derive(MallocSizeOf)` to a lot of types, in some cases replacing an
equivalent or almost-equivalent hand-written implementation.
- Adds stuff so that Rc/Arc can be handled properly.
Added direct link to Visual Studio Community
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Update rust-cssparser to 0.20.2.
This reduces memory consumption of list-valued properties in the common case of one entry in the list.
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TEST: fix and add case of po-observe.any.js
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1. implementing step 3 from the [`PerformanceObserver.observe()`](https://w3c.github.io/performance-timeline/#dom-performanceobserver-observe()) method spec properly.
2. also add cases about step 1 & 2
work on the top of #18283
r? @ferjm
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Bug 1395064 - stylo: Add uses of fallible Vec, SmallVec and HashMap f…
…acilities. r=emilio@crisal.io.
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update mach.bat if use VS buildtool for Windows build
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Add path in `mach.bat`. If user only install VS buildtool, they now can use `mach.bat`
And therefore modify `README`
Continue to PR #18145
r? @larsbergstrom
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Shrink the storage needed by specified background images
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This makes a specified background image take 48 bytes instead of 1024 bytes.
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style: remove selector_map::find_push.
It has a single caller and is overly generic, which is going to make harder to
add fallible allocations to it.
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"javascript:" urls: execute in correct global scope
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#### Summary
This pull request makes `javascript:` urls execute in the correct global scope.
#### Example
```html
<script> var x = 4; </script>
<!-- this branch: logs "4" -->
<!-- master: undefined variable error -->
<a href="javascript:console.log(x)">link</a>
```
#### Questions
I'm new to servo and rust, so I'm unsure about these changes. In particular:
* What's the appropriate place to evaluate the js?
* I moved it to `handle_navigate`, but I'm not sure if this will catch all occurrences of `javascript:` urls. I also don't know if this will execute in the correct thread and the correct window.
* What should I do with the result of the js evaluation?
* I just ignored it. The previous behavior displayed it as the content of a new page load.
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- [x] These changes fix#15147, #16718
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