Don't schedule invalidations when attributes changed if not needed or incorrect.

Source/core/dom/Node.cpp

Index: Source/core/dom/Node.cpp
diff --git a/Source/core/dom/Node.cpp b/Source/core/dom/Node.cpp
index 338aa5734b2ed6ec461f18cb4d2f1241a99d82d4..c7d5aff81281e72751725323f317d807d1125b4b 100644
--- a/Source/core/dom/Node.cpp
+++ b/Source/core/dom/Node.cpp
@@ -1022,6 +1022,8 @@ void Node::detach(const AttachContext& context)
 
     if (StyleResolver* resolver = document().styleResolver())
         resolver->ruleFeatureSet().styleInvalidator().clearInvalidation(*this);
+    clearChildNeedsStyleInvalidation();
+    clearNeedsStyleInvalidation();

[esprehn, 2014/05/08 05:19:06]

You don't need to clear these bits inside clearInvalidation now.

[chrishtr, 2014/05/08 05:29:18]

Done. Forgot to upload that patch set earlier.

 
 #ifndef NDEBUG
     detachingNode = 0;