1 files changed, 8 insertions, 0 deletions
diff --git a/src/3rdparty/webkit/WebCore/rendering/RenderLayer.cpp b/src/3rdparty/webkit/WebCore/rendering/RenderLayer.cpp
index 3314772..a012868 100644
--- a/src/3rdparty/webkit/WebCore/rendering/RenderLayer.cpp
+++ b/src/3rdparty/webkit/WebCore/rendering/RenderLayer.cpp
@@ -325,6 +325,14 @@ void RenderLayer::updateLayerPositions(UpdateLayerPositionsFlags flags)
         m_marquee->updateMarqueePosition();
 }
 
+IntRect RenderLayer::repaintRectIncludingDescendants() const
+{
+    IntRect repaintRect = m_repaintRect;
+    for (RenderLayer* child = firstChild(); child; child = child->nextSibling())
+        repaintRect.unite(child->repaintRectIncludingDescendants());
+    return repaintRect;
+}
+
 void RenderLayer::computeRepaintRects()
 {
     RenderBoxModelObject* repaintContainer = renderer()->containerForRepaint();