Auto merge of #21628 - paavininanda:Current-pixel-density, r=jdm

Current pixel density

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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 a subset of #11416.

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- [x] There are tests for these changes OR

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tests/wpt/metadata/html/semantics/embedded-content/the-img-element/adoption.html.ini

@@ -1,5 +1,6 @@
 [adoption.html]
   type: testharness
+  expected: TIMEOUT
   [adoption is from appendChild]
     expected: FAIL
 

tests/wpt/metadata/html/semantics/embedded-content/the-img-element/current-pixel-density/basic.html.ini

@@ -1,20 +1,5 @@
 [basic.html]
   type: testharness
-  [<img srcset="/images/green-256x256.png 1.6x" data-expect="160">]
-    expected: FAIL
-
-  [<img srcset="/images/green-256x256.png 2x" data-expect="128">]
-    expected: FAIL
-
-  [<img srcset="/images/green-256x256.png 512w" sizes="256px" data-expect="128">]
-    expected: FAIL
-
-  [<img srcset="/images/green-256x256.png 256w" sizes="512px" data-expect="512">]
-    expected: FAIL
-
-  [<img srcset="/images/green-256x256.png 256w" sizes="1px" data-expect="1">]
-    expected: FAIL
-
   [<img srcset="data:image/svg+xml,<svg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='-1%20-1%202%202'%20width='20'%20height='20'><circle%20r='1'/></svg> 2x" data-expect="10">]
     expected: FAIL
 
@@ -24,9 +9,3 @@
   [<img srcset="data:image/svg+xml,<svg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='-1%20-1%202%202'%20height='20'><circle%20r='1'/></svg> 2x" data-expect="10">]
     expected: FAIL
 
-  [<img srcset="/images/green-256x256.png 10000x" data-expect="0">]
-    expected: FAIL
-
-  [<img srcset="/images/green-256x256.png 256w" sizes="0px" data-expect="0">]
-    expected: FAIL
-

tests/wpt/metadata/html/semantics/embedded-content/the-img-element/non-active-document.html.ini

@@ -1,5 +1,6 @@
 [non-active-document.html]
   type: testharness
+  expected: CRASH
   [DOMParser]
     expected: FAIL