Issue trace events to gather repaint information.

Source/core/rendering/RenderFrameSet.cpp

Index: Source/core/rendering/RenderFrameSet.cpp
diff --git a/Source/core/rendering/RenderFrameSet.cpp b/Source/core/rendering/RenderFrameSet.cpp
index bf9d411fda9789f413c9d6e24a0102c4e86666ea..4a75b55d2e083ffc75e593e2104174d613c6ca61 100644
--- a/Source/core/rendering/RenderFrameSet.cpp
+++ b/Source/core/rendering/RenderFrameSet.cpp
@@ -475,10 +475,10 @@ void RenderFrameSet::layout()
     updateLayerTransform();
 
     if (doFullRepaint) {
-        repaintUsingContainer(repaintContainer, pixelSnappedIntRect(oldBounds));
+        repaintUsingContainer(repaintContainer, pixelSnappedIntRect(oldBounds), InvalidationSelfLayout);
         LayoutRect newBounds = clippedOverflowRectForRepaint(repaintContainer);
         if (newBounds != oldBounds)
-            repaintUsingContainer(repaintContainer, pixelSnappedIntRect(newBounds));
+            repaintUsingContainer(repaintContainer, pixelSnappedIntRect(newBounds), InvalidationSelfLayout);
     }
 
     clearNeedsLayout();