2008-04-17 Jon Honeycutt <jhoneycutt@apple.com>

        Reviewed by aliu.

        * page/AccessibilityObject.cpp:
        (WebCore::AccessibilityObject::layoutCount): Check isRenderView() before
        casting to RenderView.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@32041 268f45cc-cd09-0410-ab3c-d52691b4dbfc

WebCore/ChangeLog

+2008-04-17  Jon Honeycutt  <jhoneycutt@apple.com>
+
+        Reviewed by aliu.
+
+        * page/AccessibilityObject.cpp:
+        (WebCore::AccessibilityObject::layoutCount): Check isRenderView() before
+        casting to RenderView.
+
 2008-04-17  Antti Koivisto  <antti@apple.com>
         Reviewed by Oliver.
@@ -79,7 +87,6 @@
         Reviewed by Jon Honeycutt.
         Added some asserts to catch undesirable usage of setWrapper and addChildren.
-
         * page/AccessibilityObject.cpp:
         (WebCore::AccessibilityObject::addChildren):
         * page/AccessibilityObject.h:

WebCore/page/AccessibilityObject.cpp

@@ -679,6 +679,8 @@ bool AccessibilityObject::isLoaded() const
 
 int AccessibilityObject::layoutCount() const
 {
+    if (!m_renderer->isRenderView())
+        return 0;
     return static_cast<RenderView*>(m_renderer)->frameView()->layoutCount();
 }