Storage of ComputedStyle separate from LayoutObject.

third_party/WebKit/Source/core/dom/Node.cpp

Index: third_party/WebKit/Source/core/dom/Node.cpp
diff --git a/third_party/WebKit/Source/core/dom/Node.cpp b/third_party/WebKit/Source/core/dom/Node.cpp
index 8887dc3c9ad1bbcd71139232797e17c2ce296b75..b5d634ec2a491852f9bd91b68dfcddbe5463335c 100644
--- a/third_party/WebKit/Source/core/dom/Node.cpp
+++ b/third_party/WebKit/Source/core/dom/Node.cpp
@@ -267,6 +267,8 @@ Node::~Node()
     // this condition (we cannot directly access it here.)
     RELEASE_ASSERT(hasRareData() || !layoutObject());
     InstanceCounters::decrementCounter(InstanceCounters::NodeCounter);
+    if (!hasRareData() && m_data.m_computedStyle)
+        m_data.m_computedStyle->deref();
 }
 
 NodeRareData* Node::rareData() const
@@ -281,9 +283,9 @@ NodeRareData& Node::ensureRareData()
         return *rareData();
 
     if (isElementNode())
-        m_data.m_rareData = ElementRareData::create(m_data.m_layoutObject);
+        m_data.m_rareData = ElementRareData::create(layoutObject());
     else
-        m_data.m_rareData = NodeRareData::create(m_data.m_layoutObject);
+        m_data.m_rareData = NodeRareData::create(layoutObject());
 
     DCHECK(m_data.m_rareData);