Lay out the contents of slot elements (#35220)

* Make Slottable match layout/alignment of NonNull<Node>

Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>

* Implement ServoLayoutElement::slotted_nodes

Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>

* Bump mozjs

Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>

* Layout the contents of slot elements

Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>

* Implement ServoLayoutElement::assigned_slot

Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>

* implement ServoLayoutElement::traversal_parent

Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>

* Simplify slottable name update

Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>

* Don't iterate over children of shadow hosts

Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>

* Recompute slot style when contents change

Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>

* Change match_slottable to a function instead of a macro

Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>

* Fix crown errors

Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>

* Update WPT expectations

Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>

* Reset a slottable's assigned slot when it's removed from the slot

Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>

---------

Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>

10 files changed, 2 insertions, 23 deletions

diff --git a/tests/wpt/meta/shadow-dom/DocumentOrShadowRoot-prototype-elementFromPoint.html.ini b/tests/wpt/meta/shadow-dom/DocumentOrShadowRoot-prototype-elementFromPoint.html.ini
index d462e9daaec..3cc32e416f7 100644
--- a/tests/wpt/meta/shadow-dom/DocumentOrShadowRoot-prototype-elementFromPoint.html.ini
+++ b/tests/wpt/meta/shadow-dom/DocumentOrShadowRoot-prototype-elementFromPoint.html.ini
@@ -1,7 +1,4 @@
 [DocumentOrShadowRoot-prototype-elementFromPoint.html]
-  [document.elementFromPoint and shadowRoot.elementFromPoint must return the shadow host when the hit-tested text node is assigned to a slot and the host has display: inline]
-    expected: FAIL
-
   [document.elementFromPoint and shadowRoot.elementFromPoint must return the element assigned to a slot when hit-tested text node under an element is assigned to a slot in the shadow tree and the shadow host of the slot has display: block]
     expected: FAIL
 
diff --git a/tests/wpt/meta/shadow-dom/focus/focus-pseudo-on-shadow-host-2.html.ini b/tests/wpt/meta/shadow-dom/focus/focus-pseudo-on-shadow-host-2.html.ini
new file mode 100644
index 00000000000..808653f1453
--- /dev/null
+++ b/tests/wpt/meta/shadow-dom/focus/focus-pseudo-on-shadow-host-2.html.ini
@@ -0,0 +1,2 @@
+[focus-pseudo-on-shadow-host-2.html]
+  expected: FAIL
diff --git a/tests/wpt/meta/shadow-dom/imperative-slot-fallback-clear.html.ini b/tests/wpt/meta/shadow-dom/imperative-slot-fallback-clear.html.ini
deleted file mode 100644
index 2fec56352db..00000000000
--- a/tests/wpt/meta/shadow-dom/imperative-slot-fallback-clear.html.ini
+++ /dev/null
@@ -1,6 +0,0 @@
-[imperative-slot-fallback-clear.html]
-  [Text node fallback should be cleared in a subsequently layout]
-    expected: FAIL
-
-  [Element fallback should be cleared in a subsequent layout]
-    expected: FAIL
diff --git a/tests/wpt/meta/shadow-dom/imperative-slot-layout-invalidation-001.html.ini b/tests/wpt/meta/shadow-dom/imperative-slot-layout-invalidation-001.html.ini
deleted file mode 100644
index 42aa5541510..00000000000
--- a/tests/wpt/meta/shadow-dom/imperative-slot-layout-invalidation-001.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[imperative-slot-layout-invalidation-001.html]
-  expected: FAIL
diff --git a/tests/wpt/meta/shadow-dom/layout-slot-no-longer-fallback.html.ini b/tests/wpt/meta/shadow-dom/layout-slot-no-longer-fallback.html.ini
deleted file mode 100644
index 0b6e3431ed9..00000000000
--- a/tests/wpt/meta/shadow-dom/layout-slot-no-longer-fallback.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[layout-slot-no-longer-fallback.html]
-  expected: FAIL
diff --git a/tests/wpt/meta/shadow-dom/slot-fallback-content-001.html.ini b/tests/wpt/meta/shadow-dom/slot-fallback-content-001.html.ini
deleted file mode 100644
index 99cfddb8bf3..00000000000
--- a/tests/wpt/meta/shadow-dom/slot-fallback-content-001.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[slot-fallback-content-001.html]
-  expected: FAIL
diff --git a/tests/wpt/meta/shadow-dom/slot-fallback-content-002.html.ini b/tests/wpt/meta/shadow-dom/slot-fallback-content-002.html.ini
deleted file mode 100644
index 2ec0637e458..00000000000
--- a/tests/wpt/meta/shadow-dom/slot-fallback-content-002.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[slot-fallback-content-002.html]
-  expected: FAIL
diff --git a/tests/wpt/meta/shadow-dom/slot-fallback-content-007.html.ini b/tests/wpt/meta/shadow-dom/slot-fallback-content-007.html.ini
deleted file mode 100644
index f25986dbaff..00000000000
--- a/tests/wpt/meta/shadow-dom/slot-fallback-content-007.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[slot-fallback-content-007.html]
-  expected: FAIL
diff --git a/tests/wpt/meta/shadow-dom/untriaged/shadow-trees/reprojection/reprojection-001.html.ini b/tests/wpt/meta/shadow-dom/untriaged/shadow-trees/reprojection/reprojection-001.html.ini
deleted file mode 100644
index e229960af83..00000000000
--- a/tests/wpt/meta/shadow-dom/untriaged/shadow-trees/reprojection/reprojection-001.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[reprojection-001.html]
-  expected: FAIL
diff --git a/tests/wpt/meta/shadow-dom/untriaged/shadow-trees/shadow-root-002.html.ini b/tests/wpt/meta/shadow-dom/untriaged/shadow-trees/shadow-root-002.html.ini
deleted file mode 100644
index 07a6ef6989e..00000000000
--- a/tests/wpt/meta/shadow-dom/untriaged/shadow-trees/shadow-root-002.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[shadow-root-002.html]
-  expected: FAIL