Remove some dead paint flags.

sky/engine/core/rendering/RenderLayer.cpp

Index: sky/engine/core/rendering/RenderLayer.cpp
diff --git a/sky/engine/core/rendering/RenderLayer.cpp b/sky/engine/core/rendering/RenderLayer.cpp
index 05b8e5602cb839c88f2cd0c05bec872b7f9f8d66..ced7318fc7bf7d9ee5ad0772e44193cc2240be8c 100644
--- a/sky/engine/core/rendering/RenderLayer.cpp
+++ b/sky/engine/core/rendering/RenderLayer.cpp
@@ -1046,9 +1046,6 @@ void RenderLayer::paintLayerContents(GraphicsContext* context, const LayerPainti
 
     GraphicsContext* transparencyLayerContext = context;
 
-    if (paintFlags & PaintLayerPaintingRootBackgroundOnly && !renderer()->isRenderView() && !renderer()->isDocumentElement())
-        return;
-
     // Ensure our lists are up-to-date.
     m_stackingNode->updateLayerListsIfNeeded();
 
@@ -1161,11 +1158,8 @@ void RenderLayer::paintLayerContents(GraphicsContext* context, const LayerPainti
     bool shouldPaintMask = (paintFlags & PaintLayerPaintingCompositingMaskPhase) && shouldPaintContent && renderer()->hasMask();
     bool shouldPaintClippingMask = (paintFlags & PaintLayerPaintingChildClippingMaskPhase) && shouldPaintContent;
 
+    // FIXME(sky): Get rid of PaintBehavior argument now that it's always Normal.
     PaintBehavior paintBehavior = PaintBehaviorNormal;
-    if (paintFlags & PaintLayerPaintingSkipRootBackground)
-        paintBehavior |= PaintBehaviorSkipRootBackground;
-    else if (paintFlags & PaintLayerPaintingRootBackgroundOnly)
-        paintBehavior |= PaintBehaviorRootBackgroundOnly;
 
     if (shouldPaintBackground) {
         paintBackgroundForFragments(layerFragments, context, transparencyLayerContext, paintingInfo.paintDirtyRect, haveTransparency,