--- a/src/3rdparty/webkit/WebCore/page/FrameView.cpp	Mon May 03 13:17:34 2010 +0300
+++ b/src/3rdparty/webkit/WebCore/page/FrameView.cpp	Fri May 14 16:40:13 2010 +0300
@@ -739,6 +739,11 @@
     return m_useSlowRepaints || m_slowRepaintObjectCount > 0 || (platformWidget() && m_fixedObjectCount > 0) || m_isOverlapped || !m_contentIsOpaque;
 }
 
+bool FrameView::useSlowRepaintsIfNotOverlapped() const
+{
+    return m_useSlowRepaints || m_slowRepaintObjectCount > 0 || !m_contentIsOpaque;
+}
+
 void FrameView::setUseSlowRepaints()
 {
     m_useSlowRepaints = true;