cathiechen

Implement css property contain-intrinsic-size

14

#### 56ff37af5569d3a92ab72c4db7dd9825004ac4a7 Implement css property contain-intrinsic-size https://bugs.webkit.org/show_bug.cgi?id=238867 Reviewed by NOBODY (OOPS!). This patch adds support for contain-intrinsic-size value "none | <length>". The value "auto && <length>" is not supported, because...

[resize-observer] The initial size of ResizeObservation

7

https://drafts.csswg.org/resize-observer/#dom-resizeobservation-resizeobservation-target-options > 4. Set this internal lastReportedSize slot to (0,0) Not very strong opinion about this. We might miss this: - Element's size isn't (0, 0) - ro.observe(Element) - Element's...

Add support for css content-visibility: hidden

4

#### c9adf214718fdfa3d09933b3f123bb79f4f4a734 Add support for css content-visibility: hidden https://bugs.webkit.org/show_bug.cgi?id=236710 Reviewed by NOBODY (OOPS!). This patch implements support for content-visibility: hidden [1]. It introduces ContentVisibilityData to keep track for Elements whether...

Render-blocking: the definition of "created by its node document's parser" is a little bit vague

5

### What is the issue with the HTML Standard? In the Spec, to define [implicitly potentially render-blocking](https://html.spec.whatwg.org/#implicitly-potentially-render-blocking) there are: For style element: > A [style](https://html.spec.whatwg.org/#the-style-element) element is [implicitly potentially render-blocking](https://html.spec.whatwg.org/#implicitly-potentially-render-blocking)...

[contain-intrinsic-size] Element removed by parent should end up losing last remembered size

1

https://bugs.webkit.org/show_bug.cgi?id=270240 Reviewed by NOBODY (OOPS!). The code to clear last remembered size for disconnected element, it does not cover all the scenario. This patch moves it to ContainerNode::removeBetween, so that...

[render-blocking] The links of "render-blocking" in fetch are vague

2

### What is the issue with the Fetch Standard? I found the links of "render-blocking" in fetch are vague when walking through the spec. 1. It shows "Possible linking syntaxes",...