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 00883785ffa13afb5b864778ee5558083aa1d89f..8ad02b33d13bdfeddf25e0c77fb5b6989da30ba6 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"
@@ -3110,24 +3111,33 @@ 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);

[hayato, 2013/06/05 01:47:43]

It's optional, but we could use 'for' loop here rather than 'while'.

[tasak, 2013/06/07 09:55:36]

Done.

     while (m_hoverNode && !m_hoverNode->renderer())
-        m_hoverNode = m_hoverNode->parentNode();
+        m_hoverNode = NodeRenderingTraversal::parent(m_hoverNode.get(), &details);
     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();
-    while (m_activeElement && !m_activeElement->renderer())
-        m_activeElement = m_activeElement->parentElement();
+    Node* activeNode = NodeRenderingTraversal::parent(node, &details);
+    while (activeNode && activeNode->isElementNode() && !activeNode->renderer())
+        activeNode = NodeRenderingTraversal::parent(activeNode, &details);
+    m_activeElement = activeNode && activeNode->isElementNode() ? toElement(activeNode) : 0;
 }
 
 const Vector<AnnotatedRegionValue>& Document::annotatedRegions() const