Remove old repaint rect tracking from FrameView.

Source/core/layout/compositing/DeprecatedPaintLayerCompositor.cpp

Index: Source/core/layout/compositing/DeprecatedPaintLayerCompositor.cpp
diff --git a/Source/core/layout/compositing/DeprecatedPaintLayerCompositor.cpp b/Source/core/layout/compositing/DeprecatedPaintLayerCompositor.cpp
index 53657cedd899cc8ab4f52e093fa34c4a0a19b8e6..b4421cf820e2e1d044528dc327873706d772562b 100644
--- a/Source/core/layout/compositing/DeprecatedPaintLayerCompositor.cpp
+++ b/Source/core/layout/compositing/DeprecatedPaintLayerCompositor.cpp
@@ -620,14 +620,7 @@ String DeprecatedPaintLayerCompositor::layerTreeAsText(LayerTreeFlags flags)
     if (flags & LayerTreeIncludesRootLayer)
         rootLayer = rootGraphicsLayer();
 
-    String layerTreeText = rootLayer->layerTreeAsText(flags);
-
-    // The true root layer is not included in the dump, so if we want to report
-    // its paint invalidation rects, they must be included here.
-    if (flags & LayerTreeIncludesPaintInvalidationRects)
-        return m_layoutView.frameView()->trackedPaintInvalidationRectsAsText() + layerTreeText;
-
-    return layerTreeText;
+    return rootLayer->layerTreeAsText(flags);
 }
 
 DeprecatedPaintLayerCompositor* DeprecatedPaintLayerCompositor::frameContentsCompositor(LayoutPart* layoutObject)