Remove some dead paint flags.

sky/engine/core/rendering/RenderLayer.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. All rights reserved.
  *
  * Portions are Copyright (C) 1998 Netscape Communications Corporation.
  *
  * Other contributors:
  *   Robert O'Callahan <roc+@cs.cmu.edu>
  *   David Baron <dbaron@fas.harvard.edu>
  *   Christian Biesinger <cbiesinger@web.de>
  *   Randall Jesup <rjesup@wgate.com>
@@ skipping 1028 matching lines @@
     bool shouldPaintOutline = isSelfPaintingLayer && !isPaintingOverlayScrollbars
         && ((isPaintingScrollingContent && isPaintingCompositedBackground)
         || (!isPaintingScrollingContent && isPaintingCompositedForeground));
     bool shouldPaintContent = isSelfPaintingLayer && !isPaintingOverlayScrollbars;
 
     float deviceScaleFactor = blink::deviceScaleFactor(renderer()->frame());
     context->setDeviceScaleFactor(deviceScaleFactor);
 
     GraphicsContext* transparencyLayerContext = context;
 
-    if (paintFlags & PaintLayerPaintingRootBackgroundOnly && !renderer()->isRenderView() && !renderer()->isDocumentElement())
-        return;
-
     // Ensure our lists are up-to-date.
     m_stackingNode->updateLayerListsIfNeeded();
 
     LayoutPoint offsetFromRoot;
     convertToLayerCoords(paintingInfo.rootLayer, offsetFromRoot);
 
     LayoutRect rootRelativeBounds;
     bool rootRelativeBoundsComputed = false;
 
     // Apply clip-path to context.
@@ skipping 92 matching lines @@
     ASSERT(!(localPaintingInfo.paintBehavior & PaintBehaviorForceBlackText));
 
     bool shouldPaintBackground = isPaintingCompositedBackground && shouldPaintContent;
     bool shouldPaintNegZOrderList = (isPaintingScrollingContent && isPaintingOverflowContents) || (!isPaintingScrollingContent && isPaintingCompositedBackground);
     bool shouldPaintOwnContents = isPaintingCompositedForeground && shouldPaintContent;
     bool shouldPaintNormalFlowAndPosZOrderLists = isPaintingCompositedForeground;
     bool shouldPaintOverlayScrollbars = isPaintingOverlayScrollbars;
     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,
             localPaintingInfo, paintBehavior, paintingRootForRenderer, paintFlags);
     }
 
     if (shouldPaintNegZOrderList)
         paintChildren(NegativeZOrderChildren, context, paintingInfo, paintFlags);
 
     if (shouldPaintOwnContents) {
@@ skipping 1058 matching lines @@
     }
 }
 
 void showLayerTree(const blink::RenderObject* renderer)
 {
     if (!renderer)
         return;
     showLayerTree(renderer->enclosingLayer());
 }
 #endif