Move painting code for tables into *Paint classes.

Source/core/rendering/RenderTableCell.cpp

 /*
  * Copyright (C) 1997 Martin Jones (mjones@kde.org)
  *           (C) 1997 Torben Weis (weis@kde.org)
  *           (C) 1998 Waldo Bastian (bastian@kde.org)
  *           (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2003, 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
@@ skipping 974 matching lines @@
 {
     CollapsedBorderValue border = collapsedAfterBorder(DoNotIncludeBorderColor);
     if (border.exists())
         return (border.width() + ((styleForCellFlow()->isFlippedBlocksWritingMode() ^ outer) ? 1 : 0)) / 2;
     return 0;
 }
 
 void RenderTableCell::paint(PaintInfo& paintInfo, const LayoutPoint& paintOffset)
 {
     ASSERT(paintInfo.phase != PaintPhaseCollapsedTableBorders);
-    RenderBlockFlow::paint(paintInfo, paintOffset);
+    RenderBlock::paint(paintInfo, paintOffset);

[mstensho (USE GERRIT), 2014/09/19 10:50:11]

Why this change? While there's currently no implementation of
RenderBlockFlow::paint(), I think it's good practice to call the super class
unless there are explicit reasons to avoid it.

[chrishtr, 2014/09/19 16:35:24]

I want it to be explicit, so that I can more easily get this whole code out of
here once everything is in the core/paint/ directory.

[mstensho (USE GERRIT), 2014/09/19 18:08:55]

But a table cell IS a RenderBlockFlow, and it may contain things like floats and
lines.

[chrishtr, 2014/09/19 18:14:36]

I don't care that much, so reverted this change.

 }
 
 static EBorderStyle collapsedBorderStyle(EBorderStyle style)
 {
     if (style == OUTSET)
         return GROOVE;
     if (style == INSET)
         return RIDGE;
     return style;
 }
@@ skipping 255 matching lines @@
 
 RenderTableCell* RenderTableCell::createAnonymousWithParentRenderer(const RenderObject* parent)
 {
     RenderTableCell* newCell = RenderTableCell::createAnonymous(&parent->document());
     RefPtr<RenderStyle> newStyle = RenderStyle::createAnonymousStyleWithDisplay(parent->style(), TABLE_CELL);
     newCell->setStyle(newStyle.release());
     return newCell;
 }
 
 } // namespace blink