Implement select element list box with shadow DOM.

Source/WebCore/accessibility/AccessibilityListBox.cpp

Index: Source/WebCore/accessibility/AccessibilityListBox.cpp
diff --git a/Source/WebCore/accessibility/AccessibilityListBox.cpp b/Source/WebCore/accessibility/AccessibilityListBox.cpp
index 2ba922814348c0c5d0bbbdae4ab5d55e81771eba..c76cb1cfa6c6712974cb4597d4f058cf65f93dd7 100644
--- a/Source/WebCore/accessibility/AccessibilityListBox.cpp
+++ b/Source/WebCore/accessibility/AccessibilityListBox.cpp
@@ -130,11 +130,11 @@ void AccessibilityListBox::visibleChildren(AccessibilityChildrenVector& result)
     if (!hasChildren())
         addChildren();
     
-    unsigned length = m_children.size();
-    for (unsigned i = 0; i < length; i++) {
-        if (toRenderListBox(m_renderer)->listIndexIsVisible(i))
-            result.append(m_children[i]);
-    }
+//    unsigned length = m_children.size();
+//    for (unsigned i = 0; i < length; i++) {
+//        if (toRenderListBox(m_renderer)->listIndexIsVisible(i))
+//            result.append(m_children[i]);
+//    }
 }
 
 AccessibilityObject* AccessibilityListBox::listBoxOptionAccessibilityObject(HTMLElement* element) const
@@ -160,19 +160,19 @@ AccessibilityObject* AccessibilityListBox::elementAccessibilityHitTest(const Int
     if (!node)
         return 0;
     
-    LayoutRect parentRect = boundingBoxRect();
+//    LayoutRect parentRect = boundingBoxRect();
     
     AccessibilityObject* listBoxOption = 0;
-    unsigned length = m_children.size();
-    for (unsigned i = 0; i < length; i++) {
-        LayoutRect rect = toRenderListBox(m_renderer)->itemBoundingBoxRect(parentRect.location(), i);
-        // The cast to HTMLElement below is safe because the only other possible listItem type
-        // would be a WMLElement, but WML builds don't use accessibility features at all.
-        if (rect.contains(point)) {
-            listBoxOption = m_children[i].get();
-            break;
-        }
-    }
+//    unsigned length = m_children.size();
+//    for (unsigned i = 0; i < length; i++) {
+//        LayoutRect rect = toRenderListBox(m_renderer)->itemBoundingBoxRect(parentRect.location(), i);
+//        // The cast to HTMLElement below is safe because the only other possible listItem type
+//        // would be a WMLElement, but WML builds don't use accessibility features at all.
+//        if (rect.contains(point)) {
+//            listBoxOption = m_children[i].get();
+//            break;
+//        }
+//    }
     
     if (listBoxOption && !listBoxOption->accessibilityIsIgnored())
         return listBoxOption;