Create separate layout trace file for each reflow
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Currently only the layout trace from the last reflow is dumped to the file. But the interesting reflow may not be the last one. So we are dumping each of them with filename `layout_trace-{generation}.json`.
This will be used by a GUI viewer to visualize the layout process, which I will check-in later.
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Put back video metadata
I updated the `video-metadata-rs` crate: now, no more ffmpeg, just pure rust. The webm format isn't checked yet.
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Account for percentages in fixed table layout
Don't just use the minimum length all the time.
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Response API
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This PR adds the [dom::Response](https://fetch.spec.whatwg.org/#response-class) implementation and addresses #11896.
The relevant passing tests` expectations have been updated.
In order to allow non-UTF-8-encoded status messages, `net_traits::response::Response`'s `raw_status` field has been changed from type [`Option<RawStatus>`](https://doc.servo.org/hyper/http/struct.RawStatus.html) to type `Option<(u16, Vec<u8>)>`. As a result, a few other files which rely on the `raw_status` field were affected and updated.
TODOs:
- The `body` and `trailer` methods. Relies on implementation of `ReadableStream` and `Promise`s.
- Similarly, replace the dummy constructor `_body: Option<USVString>` argument with `body: ResponseBodyInit`.
- Currently, whenever `r's response's header list` or `r's Headers object` are mentioned, I always modify the `headers_reflector` field (of type dom::Headers, or `r's Headers object`) and not the corresponding hyper::Headers list in the net_traits::Response field. A completely accurate interpretation of the spec might consider making both of these lists the same thing via a reference. [Discussion](https://github.com/whatwg/fetch/issues/358) was [had](https://github.com/servo/servo/pull/12884).
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Move collapse through margin to the top of block flow
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Based on the spec, a collapse through box should be put on the top edge of the flow. This fixed ~110 reftests
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Update cssparser
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Create `mach bootstrap` based on Mozilla's mozboot bootstrapper
Fixes https://github.com/servo/servo/issues/12914
I've made this few weeks ago, its an example how could everything looks like.
It downloads and setup all needed dependencies for MSVC.
It's has version in case if some dependencies need to be updated.
Zip files and folder in zip need to be named ``<dep>-<version>``.
Also if cmake already exist in PATH, it won't download it again.
I want opinion on that, if this is right approaches and how to improve it.
cc @vvuk
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Update webdriver-rust library to 0.14
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This updates the _webdriver-rust_ library to 0.14 and makes the necessary API changes to make it compile with Servo.
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