Use invalidation sets for some pseudo elements.

Source/core/css/RuleFeature.cpp

Index: Source/core/css/RuleFeature.cpp
diff --git a/Source/core/css/RuleFeature.cpp b/Source/core/css/RuleFeature.cpp
index 32df831c40f09f1a4ba62e9e28b5eb67afcbfd2e..748d50f8aaf8f01f8c118f61feade5189908a0fd 100644
--- a/Source/core/css/RuleFeature.cpp
+++ b/Source/core/css/RuleFeature.cpp
@@ -52,6 +52,16 @@ static bool isSkippableComponentForInvalidation(const CSSSelector& selector)
         || selector.m_match == CSSSelector::Id
         || selector.isAttributeSelector())
         return true;
+    if (selector.m_match == CSSSelector::PseudoElement) {
+        switch (selector.m_pseudoType) {
+        case CSSSelector::PseudoBefore:
+        case CSSSelector::PseudoAfter:
+        case CSSSelector::PseudoBackdrop:
+            return true;
+        default:
+            return false;
+        }
+    }
     if (selector.m_match != CSSSelector::PseudoClass)
         return false;
     switch (selector.pseudoType()) {