[IFC][Ruby][Integration] Propage style to anomymous inlines

https://bugs.webkit.org/show_bug.cgi?id=262877
rdar://116668321

Reviewed by Alan Baradlay.

Ruby uses anonymous inlines. They need style propagation similar to blocks.

* Source/WebCore/rendering/RenderInline.cpp:
(WebCore::RenderInline::styleDidChange):

Propage similarly to RenderBlock.

* Source/WebCore/rendering/updating/RenderTreeBuilderRuby.cpp:
(WebCore::RenderTreeBuilder::Ruby::findOrCreateParentForStyleBasedRubyChild):

Take care to call initializeStyle() for the anonymous renderers.

Canonical link: https://commits.webkit.org/269073@main

Source/WebCore/rendering/RenderInline.cpp

@@ -202,6 +202,8 @@ void RenderInline::styleDidChange(StyleDifference diff, const RenderStyle* oldSt
                 lineLayout->updateStyle(*this, *oldStyle);
         }
     }
+
+    propagateStyleToAnonymousChildren(PropagateToAllChildren);
 }
 
 bool RenderInline::mayAffectLayout() const

Source/WebCore/rendering/updating/RenderTreeBuilderRuby.cpp

@@ -370,6 +370,7 @@ RenderElement& RenderTreeBuilder::Ruby::findOrCreateParentForStyleBasedRubyChild
 
     if (parent.style().display() != DisplayType::Ruby) {
         auto rubyContainer = createRenderer<RenderInline>(RenderObject::Type::Inline, parent.document(), RenderStyle::createAnonymousStyleWithDisplay(parent.style(), DisplayType::Ruby));
+        rubyContainer->initializeStyle();
         WeakPtr newParent = rubyContainer.get();
         m_builder.attach(parent, WTFMove(rubyContainer), beforeChild);
         beforeChild = nullptr;
@@ -389,6 +390,7 @@ RenderElement& RenderTreeBuilder::Ruby::findOrCreateParentForStyleBasedRubyChild
     }
 
     auto rubyBase = createRenderer<RenderInline>(RenderObject::Type::Inline, parent.document(), RenderStyle::createAnonymousStyleWithDisplay(parent.style(), DisplayType::RubyBase));
+    rubyBase->initializeStyle();
     WeakPtr newParent = rubyBase.get();
     m_builder.inlineBuilder().attach(downcast<RenderInline>(parent), WTFMove(rubyBase), beforeChild);
     beforeChild = nullptr;