Delete RenderSelectionInfo and other selection rect paint invalidation code.

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 1623 matching lines @@
             if (!result.isRectBasedTest())
                 result = tempResult;
             if (!depthSortDescendants)
                 break;
         }
     }
 
     return resultLayer;
 }
 
-void RenderLayer::addBlockSelectionGapsBounds(const LayoutRect& bounds)
-{
-    m_blockSelectionGapsBounds.unite(enclosingIntRect(bounds));
-}
-
-void RenderLayer::clearBlockSelectionGapsBounds()
-{
-    m_blockSelectionGapsBounds = IntRect();
-    for (RenderLayer* child = firstChild(); child; child = child->nextSibling())
-        child->clearBlockSelectionGapsBounds();
-}
-
-IntRect RenderLayer::blockSelectionGapsBounds() const
-{
-    if (!renderer()->isRenderBlock())
-        return IntRect();
-
-    RenderBlock* renderBlock = toRenderBlock(renderer());
-    LayoutRect gapRects = renderBlock->selectionGapRectsForPaintInvalidation(renderBlock);
-
-    return pixelSnappedIntRect(gapRects);
-}
-
 bool RenderLayer::intersectsDamageRect(const LayoutRect& layerBounds, const LayoutRect& damageRect, const RenderLayer* rootLayer, const LayoutPoint* offsetFromRoot) const
 {
     // Always examine the canvas and the root.
     // FIXME: Could eliminate the isDocumentElement() check if we fix background painting so that the RenderView
     // paints the root's background.
     if (isRootLayer() || renderer()->isDocumentElement())
         return true;
 
     // If we aren't an inline flow, and our layer bounds do intersect the damage rect, then we
     // can go ahead and return true.
@@ skipping 339 matching lines @@
     }
 }
 
 void showLayerTree(const blink::RenderObject* renderer)
 {
     if (!renderer)
         return;
     showLayerTree(renderer->enclosingLayer());
 }
 #endif