Remove assorted dead paint invalidation code.

sky/engine/core/rendering/RenderView.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 270 matching lines @@
         exploringBackwards = !next && (next != stop);
         if (exploringBackwards) {
             next = stop->previousInPreOrder();
             continueExploring = next && !next->isRenderView();
         }
     }
 
     return next;
 }
 
-void RenderView::setSelection(RenderObject* start, int startPos, RenderObject* end, int endPos, SelectionPaintInvalidationMode blockPaintInvalidationMode)
+void RenderView::setSelection(RenderObject* start, int startPos, RenderObject* end, int endPos)
 {
     // This code makes no assumptions as to if the rendering tree is up to date or not
     // and will not try to update it. Currently clearSelection calls this
     // (intentionally) without updating the rendering tree as it doesn't care.
     // Other callers may want to force recalc style before calling this.
 
     // Make sure both our start and end objects are defined.
     // Check www.msnbc.com and try clicking around to find the case where this happened.
     if ((start && !end) || (end && !start))
         return;
@@ skipping 44 matching lines @@
 void RenderView::getSelection(RenderObject*& startRenderer, int& startOffset, RenderObject*& endRenderer, int& endOffset) const
 {
     startRenderer = m_selectionStart;
     startOffset = m_selectionStartPos;
     endRenderer = m_selectionEnd;
     endOffset = m_selectionEndPos;
 }
 
 void RenderView::clearSelection()
 {
-    setSelection(0, -1, 0, -1, PaintInvalidationNewMinusOld);
+    setSelection(0, -1, 0, -1);
 }
 
 void RenderView::selectionStartEnd(int& startPos, int& endPos) const
 {
     startPos = m_selectionStartPos;
     endPos = m_selectionEndPos;
 }
 
 LayoutRect RenderView::viewRect() const
 {
@@ skipping 114 matching lines @@
     m_iframes.remove(iframe);
 }
 
 void RenderView::updateIFramesAfterLayout()
 {
     for (auto& iframe: m_iframes)
         iframe->updateWidgetBounds();
 }
 
 } // namespace blink