Auto merge of #25578 - pshaughn:custompicture, r=jdm

Let custom element registry know about picture tag

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This replaces one WPT failure with another, but the previous one failure was preventing multiple cases from running, and now only one of those cases fails (due to #24993).

---
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- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix #25577

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- [X] There are tests for these changes

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components/script/dom/bindings/htmlconstructor.rs

@@ -46,6 +46,7 @@ use crate::dom::bindings::codegen::Bindings::HTMLOptionElementBinding;
 use crate::dom::bindings::codegen::Bindings::HTMLOutputElementBinding;
 use crate::dom::bindings::codegen::Bindings::HTMLParagraphElementBinding;
 use crate::dom::bindings::codegen::Bindings::HTMLParamElementBinding;
+use crate::dom::bindings::codegen::Bindings::HTMLPictureElementBinding;
 use crate::dom::bindings::codegen::Bindings::HTMLPreElementBinding;
 use crate::dom::bindings::codegen::Bindings::HTMLProgressElementBinding;
 use crate::dom::bindings::codegen::Bindings::HTMLQuoteElementBinding;
@@ -292,6 +293,7 @@ pub fn get_constructor_object_from_local_name(
         local_name!("output") => get_constructor!(HTMLOutputElementBinding),
         local_name!("p") => get_constructor!(HTMLParagraphElementBinding),
         local_name!("param") => get_constructor!(HTMLParamElementBinding),
+        local_name!("picture") => get_constructor!(HTMLPictureElementBinding),
         local_name!("plaintext") => get_constructor!(HTMLPreElementBinding),
         local_name!("pre") => get_constructor!(HTMLPreElementBinding),
         local_name!("progress") => get_constructor!(HTMLProgressElementBinding),

components/script/dom/customelementregistry.rs

@@ -1140,6 +1140,7 @@ fn is_extendable_element_interface(element: &str) -> bool {
         element == "output" ||
         element == "p" ||
         element == "param" ||
+        element == "picture" ||
         element == "plaintext" ||
         element == "pre" ||
         element == "progress" ||