[LBSE] Add support for 'foreignObject' elements

https://bugs.webkit.org/show_bug.cgi?id=243498

Reviewed by Rob Buis.

Rename RenderSVGForeignObject -> LegacyRenderSVGForeignObject.

Re-introduce RenderSVGForeignObject for LBSE. This marks the finish
of the renderer conversion: all non-resource related renderers have both a legacy
and LBSE Renderer class now: <foreignObject> was the last missing element in LBSE.

Covered by existing svg/foreignObject tests, which all pass now in LBSE (except
three that depends on clipping / masking / filters).

* LayoutTests/platform/mac-monterey-wk2-lbse-text/TestExpectations:
* LayoutTests/platform/mac-monterey-wk2-lbse-text/svg/foreignObject/background-render-phase-expected.txt: Added.
* LayoutTests/platform/mac-monterey-wk2-lbse-text/svg/foreignObject/body-background-expected.txt: Added.
* LayoutTests/platform/mac-monterey-wk2-lbse-text/svg/foreignObject/clip-expected.txt: Added.
* LayoutTests/platform/mac-monterey-wk2-lbse-text/svg/foreignObject/disallowed-svg-nodes-as-direct-children-expected.txt: Added.
* LayoutTests/platform/mac-monterey-wk2-lbse-text/svg/foreignObject/fO-display-none-expected.txt: Added.
* LayoutTests/platform/mac-monterey-wk2-lbse-text/svg/foreignObject/fO-display-none-with-relative-pos-content-expected.txt: Added.
* LayoutTests/platform/mac-monterey-wk2-lbse-text/svg/foreignObject/fO-parent-display-changes-expected.txt: Added.
* LayoutTests/platform/mac-monterey-wk2-lbse-text/svg/foreignObject/fO-parent-display-none-expected.txt: Added.
* LayoutTests/platform/mac-monterey-wk2-lbse-text/svg/foreignObject/fO-parent-display-none-with-relative-pos-content-expected.txt: Added.
* LayoutTests/platform/mac-monterey-wk2-lbse-text/svg/foreignObject/fO-parent-of-parent-display-none-expected.txt: Added.
* LayoutTests/platform/mac-monterey-wk2-lbse-text/svg/foreignObject/fO-parent-of-parent-display-none-with-relative-pos-content-expected.txt: Added.
* LayoutTests/platform/mac-monterey-wk2-lbse-text/svg/foreignObject/filter-expected.txt: Added.
* LayoutTests/platform/mac-monterey-wk2-lbse-text/svg/foreignObject/mask-expected.txt: Added.
* LayoutTests/platform/mac-monterey-wk2-lbse-text/svg/foreignObject/multiple-foreign-objects-expected.txt: Added.
* LayoutTests/platform/mac-monterey-wk2-lbse-text/svg/foreignObject/no-crash-with-svg-content-in-html-document-expected.png: Added.
* LayoutTests/platform/mac-monterey-wk2-lbse-text/svg/foreignObject/no-crash-with-svg-content-in-html-document-expected.txt: Added.
* LayoutTests/platform/mac-monterey-wk2-lbse-text/svg/foreignObject/svg-document-as-direct-child-expected.txt: Added.
* LayoutTests/platform/mac-monterey-wk2-lbse-text/svg/foreignObject/svg-document-in-html-document-expected.png: Added.
* LayoutTests/platform/mac-monterey-wk2-lbse-text/svg/foreignObject/svg-document-in-html-document-expected.txt: Added.
* LayoutTests/platform/mac-monterey-wk2-lbse-text/svg/foreignObject/text-tref-02-b-expected.png: Added.
* LayoutTests/platform/mac-monterey-wk2-lbse-text/svg/foreignObject/text-tref-02-b-expected.txt: Added.
* LayoutTests/platform/mac/svg/foreignObject/fO-parent-display-changes-expected.txt:
* LayoutTests/svg/foreignObject/fO-parent-display-changes.svg:
* Source/WebCore/Sources.txt:
* Source/WebCore/WebCore.xcodeproj/project.pbxproj:
* Source/WebCore/accessibility/AccessibilitySVGElement.cpp:
(WebCore::AccessibilitySVGElement::determineAccessibilityRole):
* Source/WebCore/rendering/RenderElement.cpp:
(WebCore::RenderElement::didAttachChild):
(WebCore::RenderElement::layerCreationAllowedForSubtree const):
* Source/WebCore/rendering/RenderElement.h:
(WebCore::RenderElement::canContainFixedPositionObjects const):
(WebCore::RenderElement::canContainAbsolutelyPositionedObjects const):
* Source/WebCore/rendering/RenderLayer.cpp:
(WebCore::RenderLayer::updateAncestorDependentState):
(WebCore::RenderLayer::paintForegroundForFragments):
* Source/WebCore/rendering/RenderLayerModelObject.cpp:
(WebCore::RenderLayerModelObject::shouldPaintSVGRenderer const):
* Source/WebCore/rendering/RenderLayerModelObject.h:
* Source/WebCore/rendering/RenderObject.h:
(WebCore::RenderObject::isLegacySVGForeignObject const):
(WebCore::RenderObject::isSVGForeignObjectOrLegacySVGForeignObject const):
* Source/WebCore/rendering/svg/LegacyRenderSVGForeignObject.cpp: Copied from Source/WebCore/rendering/svg/RenderSVGForeignObject.cpp.
(WebCore::LegacyRenderSVGForeignObject::LegacyRenderSVGForeignObject):
(WebCore::LegacyRenderSVGForeignObject::foreignObjectElement const):
(WebCore::LegacyRenderSVGForeignObject::paint):
(WebCore::LegacyRenderSVGForeignObject::localToParentTransform const):
(WebCore::LegacyRenderSVGForeignObject::updateLogicalWidth):
(WebCore::LegacyRenderSVGForeignObject::computeLogicalHeight const):
(WebCore::LegacyRenderSVGForeignObject::layout):
(WebCore::LegacyRenderSVGForeignObject::nodeAtFloatPoint):
* Source/WebCore/rendering/svg/LegacyRenderSVGForeignObject.h: Copied from Source/WebCore/rendering/svg/RenderSVGForeignObject.h.
* Source/WebCore/rendering/svg/LegacyRenderSVGModelObject.h:
* Source/WebCore/rendering/svg/RenderSVGBlock.cpp:
(WebCore::RenderSVGBlock::updateFromStyle):
(WebCore::RenderSVGBlock::mapLocalToContainer const):
(WebCore::RenderSVGBlock::pushMappingToContainer const):
* Source/WebCore/rendering/svg/RenderSVGBlock.h:
* Source/WebCore/rendering/svg/RenderSVGForeignObject.cpp:
(WebCore::RenderSVGForeignObject::paint):
(WebCore::RenderSVGForeignObject::updateLogicalWidth):
(WebCore::RenderSVGForeignObject::computeLogicalHeight const):
(WebCore::RenderSVGForeignObject::layout):
(WebCore::RenderSVGForeignObject::overflowClipRect const):
(WebCore::RenderSVGForeignObject::updateFromStyle):
(WebCore::RenderSVGForeignObject::applyTransform const):
(WebCore::RenderSVGForeignObject::localToParentTransform const): Deleted.
(WebCore::RenderSVGForeignObject::nodeAtFloatPoint): Deleted.
* Source/WebCore/rendering/svg/RenderSVGForeignObject.h:
* Source/WebCore/rendering/svg/RenderSVGModelObject.h:
* Source/WebCore/rendering/svg/RenderSVGRoot.cpp:
* Source/WebCore/rendering/svg/SVGContainerLayout.cpp:
* Source/WebCore/svg/SVGElement.cpp:
(WebCore::createSVGLayerAwareElementSet):
* Source/WebCore/svg/SVGForeignObjectElement.cpp:
(WebCore::SVGForeignObjectElement::createElementRenderer):
(WebCore::SVGForeignObjectElement::rendererIsNeeded):

Canonical link: https://commits.webkit.org/253816@main

LayoutTests/platform/mac-monterey-wk2-lbse-text/TestExpectations

@@ -1,13 +1,21 @@
-# This TestExpectations file reflects the current status of the 'Layer-based SVG engine' (LBSE) in WebKit
+# This TestExpectations file reflects the current status of the 'Layer-Based SVG Engine' (LBSE) in WebKit
 #
 # 1. Run tests against legacy SVG engine
-#    $ run-webkit-tests --additional-platform-directory=$PWD/LayoutTests/platform/mac-monterey-wk2-pixel --pixel-tests --tolerance=0 svg/W3C-SVG-1.1 svg/compositing svg/z-index
+#    $ run-webkit-tests --additional-platform-directory=$PWD/LayoutTests/platform/mac-monterey-wk2-pixel --pixel-tests --tolerance=0 \
+#                       svg/W3C-SVG-1.1 svg/compositing svg/foreignObject svg/z-index
 #
 # 2. Run tests against LBSE
-#    $ run-webkit-tests --additional-platform-directory=$PWD/LayoutTests/platform/mac-monterey-wk2-pixel \
-#                       --additional-platform-directory=$PWD/LayoutTests/platform/mac-monterey-wk2-lbse-text \
+#    $ run-webkit-tests --additional-platform-directory=$PWD/LayoutTests/platform/mac-monterey-wk2-lbse-text \
+#                       --additional-platform-directory=$PWD/LayoutTests/platform/mac-monterey-wk2-pixel \
 #                       --additional-expectations=$PWD/LayoutTests/platform/mac-monterey-wk2-lbse-text/TestExpectations \
-#                       --pixel-tests --tolerance=0 --internal-feature=LayerBasedSVGEngineEnabled=true svg/W3C-SVG-1.1 svg/compositing svg/z-index
+#                       --pixel-tests --tolerance=0 --internal-feature=LayerBasedSVGEngineEnabled=true \
+#                       svg/W3C-SVG-1.1 svg/compositing svg/foreignObject svg/z-index
+#
+# Notes:
+# - 'platform/mac-monterey-wk2-pixel' contains only pixel test results (-expected.png) generated on macOS Monterey using legacy SVG engine
+# - 'platform/mac-monterey-wk2-lbse-text' contains mostly text results (-expected.txt) which are intrinsically different between LBSE / legacy
+#                                         SVG engine plus a few pixel test results (-expected.png) that differ from the legacy SVG engine
+#                                         (e.g. progressions in individual tests)
 
 svg/W3C-SVG-1.1/animate-elem-02-t.svg       [ Pass ]
 svg/W3C-SVG-1.1/animate-elem-03-t.svg       [ Pass ]
@@ -287,3 +295,6 @@ svg/W3C-SVG-1.1/text-tspan-01-b.svg         [ Pass ]
 svg/W3C-SVG-1.1/text-ws-01-t.svg            [ Pass ]
 svg/W3C-SVG-1.1/text-ws-02-t.svg            [ Pass ]
 svg/W3C-SVG-1.1/types-basicDOM-01-b.svg     [ ImageOnlyFailure ]
+svg/foreignObject/clip.html                 [ ImageOnlyFailure ]
+svg/foreignObject/filter.html               [ ImageOnlyFailure ]
+svg/foreignObject/mask.html                 [ ImageOnlyFailure ]

LayoutTests/platform/mac-monterey-wk2-lbse-text/svg/foreignObject/background-render-phase-expected.txt

@@ -0,0 +1,15 @@
+layer at (0,0) size 800x600
+  RenderView at (0,0) size 800x600
+layer at (0,0) size 800x600
+  RenderBlock {HTML} at (0,0) size 800x600
+    RenderBody {BODY} at (0,0) size 800x600
+      RenderText {#text} at (0,0) size 0x0
+layer at (0,0) size 300x150
+  RenderSVGRoot {svg} at (0,0) size 300x150
+layer at (0,0) size 300x150
+  RenderSVGViewportContainer at (0,0) size 300x150
+layer at (0,0) size 100x50
+  RenderSVGRect {rect} at (0,0) size 100x50 [fill={[type=SOLID] [color=#FF0000]}] [x=0.00] [y=0.00] [width=100.00] [height=50.00]
+layer at (0,0) size 200x50
+  RenderSVGForeignObject {foreignObject} at (0,0) size 200x50
+    RenderBlock {DIV} at (0,0) size 200x50 [bgcolor=#008000]

LayoutTests/platform/mac-monterey-wk2-lbse-text/svg/foreignObject/body-background-expected.txt

@@ -0,0 +1,13 @@
+layer at (0,0) size 800x600
+  RenderView at (0,0) size 800x600
+layer at (0,0) size 800x600
+  RenderSVGRoot {svg} at (0,0) size 800x600
+layer at (0,0) size 800x600
+  RenderSVGViewportContainer at (0,0) size 800x600
+layer at (20,20) size 200x100
+  RenderSVGRect {rect} at (20,20) size 200x100 [fill={[type=SOLID] [color=#FF0000]}] [x=20.00] [y=20.00] [width=200.00] [height=100.00]
+layer at (0,0) size 200x100
+  RenderSVGForeignObject {foreignObject} at (0,0) size 200x100
+    RenderBlock {html} at (0,0) size 200x100
+      RenderBody {body} at (0,0) size 200x100 [bgcolor=#008000]
+        RenderBlock {div} at (0,0) size 200x100

LayoutTests/platform/mac-monterey-wk2-lbse-text/svg/foreignObject/clip-expected.txt

@@ -0,0 +1,14 @@
+layer at (0,0) size 800x600
+  RenderView at (0,0) size 800x600
+layer at (0,0) size 800x600
+  RenderBlock {HTML} at (0,0) size 800x600
+    RenderBody {BODY} at (0,0) size 800x600
+      RenderText {#text} at (0,0) size 0x0
+layer at (0,0) size 300x150
+  RenderSVGRoot {svg} at (0,0) size 300x150
+layer at (0,0) size 300x150
+  RenderSVGViewportContainer at (0,0) size 300x150
+layer at (0,0) size 200x100
+  RenderSVGForeignObject {foreignObject} at (0,0) size 200x100
+    RenderBlock {DIV} at (0,0) size 200x50 [bgcolor=#008000]
+    RenderBlock {DIV} at (0,50) size 200x50 [bgcolor=#FF0000]

LayoutTests/platform/mac-monterey-wk2-lbse-text/svg/foreignObject/disallowed-svg-nodes-as-direct-children-expected.txt

@@ -0,0 +1,8 @@
+layer at (0,0) size 800x600
+  RenderView at (0,0) size 800x600
+layer at (0,0) size 800x600
+  RenderSVGRoot {svg} at (0,0) size 800x600
+layer at (0,0) size 800x600
+  RenderSVGViewportContainer at (0,0) size 800x600
+layer at (0,0) size 300x100
+  RenderSVGForeignObject {foreignObject} at (0,0) size 300x100

LayoutTests/platform/mac-monterey-wk2-lbse-text/svg/foreignObject/fO-display-none-expected.txt

@@ -0,0 +1,8 @@
+layer at (0,0) size 800x600
+  RenderView at (0,0) size 800x600
+layer at (0,0) size 800x600
+  RenderSVGRoot {svg} at (0,0) size 800x600
+layer at (0,0) size 800x600
+  RenderSVGViewportContainer at (0,0) size 800x600
+layer at (0,0) size 100x90
+  RenderSVGRect {rect} at (0,0) size 100x90 [fill={[type=SOLID] [color=#008000]}] [x=0.00] [y=0.00] [width=100.00] [height=90.00]

LayoutTests/platform/mac-monterey-wk2-lbse-text/svg/foreignObject/fO-display-none-with-relative-pos-content-expected.txt

@@ -0,0 +1,8 @@
+layer at (0,0) size 800x600
+  RenderView at (0,0) size 800x600
+layer at (0,0) size 800x600
+  RenderSVGRoot {svg} at (0,0) size 800x600
+layer at (0,0) size 800x600
+  RenderSVGViewportContainer at (0,0) size 800x600
+layer at (0,0) size 100x90
+  RenderSVGRect {rect} at (0,0) size 100x90 [fill={[type=SOLID] [color=#008000]}] [x=0.00] [y=0.00] [width=100.00] [height=90.00]

LayoutTests/platform/mac-monterey-wk2-lbse-text/svg/foreignObject/fO-parent-display-changes-expected.txt

@@ -0,0 +1,17 @@
+layer at (0,0) size 800x600
+  RenderView at (0,0) size 800x600
+layer at (0,0) size 800x600
+  RenderSVGRoot {svg} at (0,0) size 800x600
+layer at (0,0) size 800x600
+  RenderSVGViewportContainer at (0,0) size 800x600
+layer at (0,0) size 100x90
+  RenderSVGRect {rect} at (0,0) size 100x90 [fill={[type=SOLID] [color=#008000]}] [x=0.00] [y=0.00] [width=100.00] [height=90.00]
+layer at (0,0) size 100x100
+  RenderSVGTransformableContainer {g} at (0,0) size 100x100
+layer at (0,0) size 100x100
+  RenderSVGForeignObject {foreignObject} at (0,0) size 100x100
+    RenderBlock {html} at (0,0) size 100x100
+layer at (0,0) size 100x100
+  RenderBody {body} at (0,0) size 100x100 [color=#FFFFFF]
+    RenderText {#text} at (0,0) size 37x18
+      text run at (0,0) width 37: "PASS"

LayoutTests/platform/mac-monterey-wk2-lbse-text/svg/foreignObject/fO-parent-display-none-expected.txt

@@ -0,0 +1,8 @@
+layer at (0,0) size 800x600
+  RenderView at (0,0) size 800x600
+layer at (0,0) size 800x600
+  RenderSVGRoot {svg} at (0,0) size 800x600
+layer at (0,0) size 800x600
+  RenderSVGViewportContainer at (0,0) size 800x600
+layer at (0,0) size 100x90
+  RenderSVGRect {rect} at (0,0) size 100x90 [fill={[type=SOLID] [color=#008000]}] [x=0.00] [y=0.00] [width=100.00] [height=90.00]

LayoutTests/platform/mac-monterey-wk2-lbse-text/svg/foreignObject/fO-parent-display-none-with-relative-pos-content-expected.txt

@@ -0,0 +1,8 @@
+layer at (0,0) size 800x600
+  RenderView at (0,0) size 800x600
+layer at (0,0) size 800x600
+  RenderSVGRoot {svg} at (0,0) size 800x600
+layer at (0,0) size 800x600
+  RenderSVGViewportContainer at (0,0) size 800x600
+layer at (0,0) size 100x90
+  RenderSVGRect {rect} at (0,0) size 100x90 [fill={[type=SOLID] [color=#008000]}] [x=0.00] [y=0.00] [width=100.00] [height=90.00]

LayoutTests/platform/mac-monterey-wk2-lbse-text/svg/foreignObject/fO-parent-of-parent-display-none-expected.txt

@@ -0,0 +1,8 @@
+layer at (0,0) size 800x600
+  RenderView at (0,0) size 800x600
+layer at (0,0) size 800x600
+  RenderSVGRoot {svg} at (0,0) size 800x600
+layer at (0,0) size 800x600
+  RenderSVGViewportContainer at (0,0) size 800x600
+layer at (0,0) size 100x90
+  RenderSVGRect {rect} at (0,0) size 100x90 [fill={[type=SOLID] [color=#008000]}] [x=0.00] [y=0.00] [width=100.00] [height=90.00]

LayoutTests/platform/mac-monterey-wk2-lbse-text/svg/foreignObject/fO-parent-of-parent-display-none-with-relative-pos-content-expected.txt

@@ -0,0 +1,8 @@
+layer at (0,0) size 800x600
+  RenderView at (0,0) size 800x600
+layer at (0,0) size 800x600
+  RenderSVGRoot {svg} at (0,0) size 800x600
+layer at (0,0) size 800x600
+  RenderSVGViewportContainer at (0,0) size 800x600
+layer at (0,0) size 100x90
+  RenderSVGRect {rect} at (0,0) size 100x90 [fill={[type=SOLID] [color=#008000]}] [x=0.00] [y=0.00] [width=100.00] [height=90.00]

LayoutTests/platform/mac-monterey-wk2-lbse-text/svg/foreignObject/filter-expected.txt

@@ -0,0 +1,14 @@
+layer at (0,0) size 800x600
+  RenderView at (0,0) size 800x600
+layer at (0,0) size 800x600
+  RenderBlock {HTML} at (0,0) size 800x600
+    RenderBody {BODY} at (0,0) size 800x600
+      RenderText {#text} at (0,0) size 0x0
+layer at (0,0) size 300x150
+  RenderSVGRoot {svg} at (0,0) size 300x150
+layer at (0,0) size 300x150
+  RenderSVGViewportContainer at (0,0) size 300x150
+layer at (0,0) size 200x100
+  RenderSVGForeignObject {foreignObject} at (0,0) size 200x100
+    RenderBlock {DIV} at (0,0) size 200x50 [bgcolor=#008000]
+    RenderBlock {DIV} at (0,50) size 200x50 [bgcolor=#FF0000]

LayoutTests/platform/mac-monterey-wk2-lbse-text/svg/foreignObject/mask-expected.txt

@@ -0,0 +1,14 @@
+layer at (0,0) size 800x600
+  RenderView at (0,0) size 800x600
+layer at (0,0) size 800x600
+  RenderBlock {HTML} at (0,0) size 800x600
+    RenderBody {BODY} at (0,0) size 800x600
+      RenderText {#text} at (0,0) size 0x0
+layer at (0,0) size 300x150
+  RenderSVGRoot {svg} at (0,0) size 300x150
+layer at (0,0) size 300x150
+  RenderSVGViewportContainer at (0,0) size 300x150
+layer at (0,0) size 200x100
+  RenderSVGForeignObject {foreignObject} at (0,0) size 200x100
+    RenderBlock {DIV} at (0,0) size 200x50 [bgcolor=#008000]
+    RenderBlock {DIV} at (0,50) size 200x50 [bgcolor=#FF0000]

LayoutTests/platform/mac-monterey-wk2-lbse-text/svg/foreignObject/multiple-foreign-objects-expected.txt

@@ -0,0 +1,16 @@
+layer at (0,0) size 800x600
+  RenderView at (0,0) size 800x600
+layer at (0,0) size 800x600
+  RenderBlock {HTML} at (0,0) size 800x600
+    RenderBody {BODY} at (0,0) size 800x600
+      RenderText {#text} at (0,0) size 0x0
+layer at (0,0) size 300x150
+  RenderSVGRoot {svg} at (0,0) size 300x150
+layer at (0,0) size 300x150
+  RenderSVGViewportContainer at (0,0) size 300x150
+layer at (0,0) size 100x100
+  RenderSVGForeignObject {foreignObject} at (0,0) size 100x100
+    RenderBlock {DIV} at (0,0) size 100x100 [bgcolor=#008000]
+layer at (0,0) size 100x100
+  RenderSVGForeignObject {foreignObject} at (0,0) size 100x100
+    RenderBlock {DIV} at (0,0) size 100x100 [bgcolor=#008000]

LayoutTests/platform/mac-monterey-wk2-lbse-text/svg/foreignObject/no-crash-with-svg-content-in-html-document-expected.txt

@@ -0,0 +1,15 @@
+layer at (0,0) size 800x600
+  RenderView at (0,0) size 800x600
+layer at (0,0) size 800x600
+  RenderSVGRoot {svg} at (0,0) size 800x600
+layer at (0,0) size 800x600
+  RenderSVGViewportContainer at (0,0) size 800x600
+layer at (0,0) size 300x100
+  RenderSVGForeignObject {foreignObject} at (0,0) size 300x100
+    RenderBlock {html} at (0,16) size 300x18
+      RenderBlock {p} at (0,0) size 300x18
+        RenderText {#text} at (0,0) size 138x18
+          text run at (0,0) width 138: "This should not crash"
+      RenderBlock (anonymous) at (0,34) size 300x0
+        RenderInline {g} at (0,0) size 0x0
+        RenderText {#text} at (0,0) size 0x0

LayoutTests/platform/mac-monterey-wk2-lbse-text/svg/foreignObject/svg-document-as-direct-child-expected.txt

@@ -0,0 +1,31 @@
+layer at (0,0) size 800x600
+  RenderView at (0,0) size 800x600
+layer at (0,0) size 800x600
+  RenderSVGRoot {svg} at (0,0) size 800x600
+layer at (0,0) size 800x600
+  RenderSVGViewportContainer at (0,0) size 800x600
+layer at (0,0) size 300x100 scrollHeight 154
+  RenderSVGForeignObject {foreignObject} at (0,0) size 300x100
+    RenderText {#text} at (0,0) size 0x0
+layer at (0,0) size 300x150 backgroundClip at (0,0) size 300x100 clip at (0,0) size 300x100
+  RenderSVGRoot {svg} at (0,0) size 300x150
+layer at (0,0) size 300x150 backgroundClip at (0,0) size 300x100 clip at (0,0) size 300x100
+  RenderSVGViewportContainer at (0,0) size 300x150
+layer at (0,6) size 34x18
+  RenderSVGTransformableContainer {g} at (0,6) size 34x18
+layer at (0,6) size 34x18
+  RenderSVGText {text} at (0,0) size 34x18 contains 1 chunk(s)
+    RenderSVGInlineText {#text} at (0,0) size 34x18
+      chunk 1 text run 1 at (0.00,20.00) startOffset 0 endOffset 5 width 33.76: "crash"
+layer at (0,0) size 300x100 scrollHeight 154
+  RenderSVGForeignObject {foreignObject} at (0,0) size 300x100
+    RenderText {#text} at (0,0) size 0x0
+layer at (0,0) size 300x150 backgroundClip at (0,50) size 300x100 clip at (0,50) size 300x100
+  RenderSVGRoot {svg} at (0,0) size 300x150
+layer at (0,0) size 300x150 backgroundClip at (0,50) size 300x100 clip at (0,50) size 300x100
+  RenderSVGViewportContainer at (0,0) size 300x150
+layer at (0,0) size 100x100 backgroundClip at (0,50) size 300x100 clip at (0,50) size 300x100
+  RenderSVGRect {rect} at (0,0) size 100x100 [fill={[type=SOLID] [color=#008000]}] [x=0.00] [y=0.00] [width=100.00] [height=100.00]
+layer at (0,0) size 300x100 scrollHeight 154
+  RenderSVGForeignObject {foreignObject} at (0,0) size 300x100
+    RenderText {#text} at (0,0) size 0x0

LayoutTests/platform/mac-monterey-wk2-lbse-text/svg/foreignObject/svg-document-in-html-document-expected.txt

@@ -0,0 +1,24 @@
+layer at (0,0) size 800x600
+  RenderView at (0,0) size 800x600
+layer at (0,0) size 800x600
+  RenderSVGRoot {svg} at (0,0) size 800x600
+layer at (0,0) size 800x600
+  RenderSVGViewportContainer at (0,0) size 800x600
+layer at (0,0) size 300x100 scrollHeight 204
+  RenderSVGForeignObject {foreignObject} at (0,0) size 300x100
+    RenderBlock {html} at (0,16) size 300x188
+      RenderBlock {p} at (0,0) size 300x18
+        RenderText {#text} at (0,0) size 220x18
+          text run at (0,0) width 220: "Test from HTML in foreignObject"
+      RenderBlock (anonymous) at (0,34) size 300x154
+        RenderText {#text} at (0,0) size 0x0
+layer at (0,50) size 300x150 backgroundClip at (0,50) size 300x50 clip at (0,50) size 300x50
+  RenderSVGRoot {svg} at (0,0) size 300x150
+layer at (0,50) size 300x150 backgroundClip at (0,50) size 300x50 clip at (0,50) size 300x50
+  RenderSVGViewportContainer at (0,0) size 300x150
+layer at (0,50) size 20x20
+  RenderSVGRect {rect} at (0,0) size 20x20 [fill={[type=SOLID] [color=#008000]}] [x=0.00] [y=0.00] [width=20.00] [height=20.00]
+layer at (0,86) size 274x18 backgroundClip at (0,50) size 300x50 clip at (0,50) size 300x50
+  RenderSVGText {text} at (0,36) size 274x18 contains 1 chunk(s)
+    RenderSVGInlineText {#text} at (0,0) size 274x18
+      chunk 1 text run 1 at (0.00,50.00) startOffset 0 endOffset 38 width 273.73: "Test from SVG in HTML in foreignObject"

LayoutTests/platform/mac-monterey-wk2-lbse-text/svg/foreignObject/text-tref-02-b-expected.txt

@@ -0,0 +1,28 @@
+layer at (0,0) size 800x600
+  RenderView at (0,0) size 800x600
+layer at (0,0) size 800x600
+  RenderSVGRoot {svg} at (0,0) size 800x600
+layer at (0,0) size 800x600
+  RenderSVGViewportContainer at (0,0) size 800x600
+layer at (75,15) size 341x193
+  RenderSVGTransformableContainer {g} at (75,15) size 341x193
+layer at (75,15) size 341x12
+  RenderSVGText {text} at (0,0) size 341x13 contains 1 chunk(s)
+    RenderSVGInlineText {#text} at (0,0) size 341x13
+      chunk 1 text run 1 at (75.00,25.00) startOffset 0 endOffset 63 width 340.75: "Test 'tref' element pointing outside the SVG document fragment."
+layer at (75,171) size 82x36
+  RenderSVGText {text} at (0,155) size 83x37 contains 1 chunk(s)
+    RenderSVGInline {tref} at (0,0) size 83x37
+      RenderSVGInlineText {#text} at (0,0) size 83x37
+        chunk 1 text run 1 at (75.00,200.00) startOffset 0 endOffset 5 width 82.01: "Hello"
+    RenderSVGInlineText {#text} at (0,0) size 0x0
+    RenderSVGInline {tref} at (0,0) size 0x0
+    RenderSVGInlineText {#text} at (0,0) size 0x0
+layer at (10,314) size 230x33
+  RenderSVGTransformableContainer {g} at (10,314) size 230x33
+layer at (10,314) size 229x32
+  RenderSVGText {text} at (0,0) size 230x33 contains 1 chunk(s)
+    RenderSVGInlineText {#text} at (0,0) size 230x33
+      chunk 1 text run 1 at (10.00,340.00) startOffset 0 endOffset 16 width 229.44: "$Revision: 1.5 $"
+layer at (1,1) size 478x358
+  RenderSVGRect {rect} at (1,1) size 478x358 [stroke={[type=SOLID] [color=#000000]}] [x=1.00] [y=1.00] [width=478.00] [height=358.00]

LayoutTests/platform/mac/svg/foreignObject/fO-parent-display-changes-expected.txt

@@ -1,11 +1,11 @@
 layer at (0,0) size 800x600
   RenderView at (0,0) size 800x600
 layer at (0,0) size 800x600
-  RenderSVGRoot {svg} at (0,0) size 100x90
-    RenderSVGContainer {g} at (0,0) size 0x0
-      RenderSVGForeignObject {foreignObject} at (0,0) size 0x0
-        RenderBlock {html} at (0,0) size 0x100
+  RenderSVGRoot {svg} at (0,0) size 100x100
     RenderSVGRect {rect} at (0,0) size 100x90 [fill={[type=SOLID] [color=#008000]}] [x=0.00] [y=0.00] [width=100.00] [height=90.00]
+    RenderSVGContainer {g} at (0,0) size 100x100
+      RenderSVGForeignObject {foreignObject} at (0,0) size 100x100
+        RenderBlock {html} at (0,0) size 100x100
 layer at (0,0) size 100x100
   RenderBody {body} at (0,0) size 100x100 [color=#FFFFFF]
     RenderText {#text} at (0,0) size 37x18

Source/WebCore/Sources.txt

@@ -2535,6 +2535,7 @@ rendering/style/TextSizeAdjustment.cpp
 rendering/style/WillChangeData.cpp
 rendering/svg/LegacyRenderSVGContainer.cpp
 rendering/svg/LegacyRenderSVGEllipse.cpp
+rendering/svg/LegacyRenderSVGForeignObject.cpp
 rendering/svg/LegacyRenderSVGHiddenContainer.cpp
 rendering/svg/LegacyRenderSVGImage.cpp
 rendering/svg/LegacyRenderSVGModelObject.cpp