::before/::after are not features for invalidation.

third_party/WebKit/Source/core/css/RuleFeature.cpp

Index: third_party/WebKit/Source/core/css/RuleFeature.cpp
diff --git a/third_party/WebKit/Source/core/css/RuleFeature.cpp b/third_party/WebKit/Source/core/css/RuleFeature.cpp
index 59e3abdb63f4aac8d391f9187d3e84e023c9df03..d732d585ab686d0a1b43c810e621cc032beb9b41 100644
--- a/third_party/WebKit/Source/core/css/RuleFeature.cpp
+++ b/third_party/WebKit/Source/core/css/RuleFeature.cpp
@@ -280,21 +280,29 @@ ALWAYS_INLINE InvalidationSet& RuleFeatureSet::ensurePseudoInvalidationSet(CSSSe
 
 bool RuleFeatureSet::extractInvalidationSetFeature(const CSSSelector& selector, InvalidationSetFeatures& features)
 {
-    if (selector.match() == CSSSelector::Tag && selector.tagQName().localName() != starAtom)
+    if (selector.match() == CSSSelector::Tag && selector.tagQName().localName() != starAtom) {
         features.tagName = selector.tagQName().localName();
-    else if (selector.match() == CSSSelector::Id)
+        return true;
+    }
+    if (selector.match() == CSSSelector::Id) {
         features.id = selector.value();
-    else if (selector.match() == CSSSelector::Class)
+        return true;
+    }
+    if (selector.match() == CSSSelector::Class) {
         features.classes.append(selector.value());
-    else if (selector.isAttributeSelector())
+        return true;
+    }
+    if (selector.isAttributeSelector()) {
         features.attributes.append(selector.attribute().localName());
-    else if (selector.pseudoType() == CSSSelector::PseudoWebKitCustomElement)
+        return true;
+    }
+    if (selector.pseudoType() == CSSSelector::PseudoWebKitCustomElement) {
         features.customPseudoElement = true;
-    else if (selector.pseudoType() == CSSSelector::PseudoBefore || selector.pseudoType() == CSSSelector::PseudoAfter)
+        return true;
+    }
+    if (selector.pseudoType() == CSSSelector::PseudoBefore || selector.pseudoType() == CSSSelector::PseudoAfter)
         features.hasBeforeOrAfter = true;
-    else
-        return false;
-    return true;
+    return false;
 }
 
 InvalidationSet* RuleFeatureSet::invalidationSetForSelector(const CSSSelector& selector, InvalidationType type)