HitTestResult::innerElement should check its parent node for rendering and styling.

Source/core/dom/Document.cpp

Index: Source/core/dom/Document.cpp
diff --git a/Source/core/dom/Document.cpp b/Source/core/dom/Document.cpp
index aa963040e045666856a984ffbd983b151c2749d9..cfe2c0e8690ddca91fd8a623338707eb25a5fefd 100644
--- a/Source/core/dom/Document.cpp
+++ b/Source/core/dom/Document.cpp
@@ -89,6 +89,7 @@
 #include "core/dom/NodeFilter.h"
 #include "core/dom/NodeIterator.h"
 #include "core/dom/NodeRareData.h"
+#include "core/dom/NodeRenderingTraversal.h"
 #include "core/dom/NodeTraversal.h"
 #include "core/dom/NodeWithIndex.h"
 #include "core/dom/PageTransitionEvent.h"
@@ -3121,24 +3122,33 @@ void Document::removeFocusedNodeOfSubtree(Node* node, bool amongChildrenOnly)
 
 void Document::hoveredNodeDetached(Node* node)
 {
-    if (!m_hoverNode || (node != m_hoverNode && (!m_hoverNode->isTextNode() || node != m_hoverNode->parentNode())))
+    if (!m_hoverNode)
         return;
 
-    m_hoverNode = node->parentNode();
+    NodeRenderingTraversal::ParentDetails details;
+    if (node != m_hoverNode && (!m_hoverNode->isTextNode() || node != NodeRenderingTraversal::parent(m_hoverNode.get(), &details)))
+        return;
+
+    m_hoverNode = NodeRenderingTraversal::parent(node, &details);
     while (m_hoverNode && !m_hoverNode->renderer())
-        m_hoverNode = m_hoverNode->parentNode();
+        m_hoverNode = m_hoverNode->parentOrShadowHostNode();

[hayato, 2013/06/03 09:03:47]

Shouldn't we use NodeRenderingTraversal::parent() here?

[tasak, 2013/06/03 11:18:25]

Done.

     if (frame())
         frame()->eventHandler()->scheduleHoverStateUpdate();
 }
 
 void Document::activeChainNodeDetached(Node* node)
 {
-    if (!m_activeElement || (node != m_activeElement && (!m_activeElement->isTextNode() || node != m_activeElement->parentNode())))
+    if (!m_activeElement)
+        return;
+
+    NodeRenderingTraversal::ParentDetails details;
+    if (node != m_activeElement && (!m_activeElement->isTextNode() || node != NodeRenderingTraversal::parent(m_activeElement.get(), &details)))
         return;
 
-    m_activeElement = node->parentElement();
+    Node* parent = NodeRenderingTraversal::parent(node, &details);
+    m_activeElement = parent && parent->isElementNode() ? toElement(parent) : 0;
     while (m_activeElement && !m_activeElement->renderer())
-        m_activeElement = m_activeElement->parentElement();
+        m_activeElement = m_activeElement->parentOrShadowHostElement();

[hayato, 2013/06/03 09:03:47]

Ditto.

Also looks like NodeRenderingTraversal should have parentElement().

[tasak, 2013/06/03 11:18:25]

Done.

 }
 
 const Vector<AnnotatedRegionValue>& Document::annotatedRegions() const