1 files changed, 10 insertions, 1 deletions
diff --git a/src/3rdparty/webkit/WebCore/rendering/LayoutState.h b/src/3rdparty/webkit/WebCore/rendering/LayoutState.h
index 551c74a..afa2952 100644
--- a/src/3rdparty/webkit/WebCore/rendering/LayoutState.h
+++ b/src/3rdparty/webkit/WebCore/rendering/LayoutState.h
@@ -41,6 +41,9 @@ public:
     LayoutState()
         : m_clipped(false)
         , m_next(0)
+#ifndef NDEBUG
+        , m_renderer(0)
+#endif
     {
     }
 
@@ -62,8 +65,14 @@ private:
 public:
     bool m_clipped;
     IntRect m_clipRect;
-    IntSize m_offset;
+    IntSize m_offset;       // x/y offset from container.
+    IntSize m_layoutDelta;  // Transient offset from the final position of the object
+                            // used to ensure that repaints happen in the correct place.
+                            // This is a total delta accumulated from the root.
     LayoutState* m_next;
+#ifndef NDEBUG
+    RenderObject* m_renderer;
+#endif
 };
 
 } // namespace WebCore