Made setWholeSubtreeInvalid non-inline.

Source/core/css/analyzer/DescendantInvalidationSet.cpp

Index: Source/core/css/analyzer/DescendantInvalidationSet.cpp
diff --git a/Source/core/css/analyzer/DescendantInvalidationSet.cpp b/Source/core/css/analyzer/DescendantInvalidationSet.cpp
index 8a4aa57278870684f6b4efb9aa1152d748ea8673..5dd11f92160fc624e143f06eb62e2d4edac98780 100644
--- a/Source/core/css/analyzer/DescendantInvalidationSet.cpp
+++ b/Source/core/css/analyzer/DescendantInvalidationSet.cpp
@@ -121,4 +121,15 @@ void DescendantInvalidationSet::getClasses(Vector<AtomicString>& classes) const
         classes.append(*it);
 }
 
+void DescendantInvalidationSet::setWholeSubtreeInvalid()
+{
+    if (m_allDescendantsMightBeInvalid)
+        return;
+
+    m_allDescendantsMightBeInvalid = true;
+    m_classes = nullptr;
+    m_ids = nullptr;
+    m_tagNames = nullptr;
+}
+
 } // namespace WebCore