WIP: Skeleton for paint offset caching

Source/core/paint/TablePainter.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "config.h"
 #include "core/paint/TablePainter.h"
 
 #include "core/layout/LayoutTable.h"
 #include "core/layout/LayoutTableSection.h"
 #include "core/style/CollapsedBorderValue.h"
@@ skipping 50 matching lines @@
                 section->paint(info, childPoint);
             }
         }
         m_layoutTable.setCurrentBorderValue(0);
     }
 
     // Paint outline.
     if ((paintPhase == PaintPhaseOutline || paintPhase == PaintPhaseSelfOutline) && m_layoutTable.style()->hasOutline() && m_layoutTable.style()->visibility() == VISIBLE) {
         LayoutRect overflowRect(m_layoutTable.visualOverflowRect());
         overflowRect.moveBy(paintOffset);
-        ObjectPainter(m_layoutTable).paintOutline(paintInfo, LayoutRect(paintOffset, m_layoutTable.size()), overflowRect);
+        ObjectPainter(m_layoutTable).paintOutline(paintInfo, LayoutRect(paintOffset, m_layoutTable.size()), overflowRect, paintOffset);
     }
 }
 
 void TablePainter::paintBoxDecorationBackground(const PaintInfo& paintInfo, const LayoutPoint& paintOffset)
 {
     if (!paintInfo.shouldPaintWithinRoot(&m_layoutTable))
         return;
 
     LayoutRect rect(paintOffset, m_layoutTable.size());
     m_layoutTable.subtractCaptionRect(rect);
     BoxPainter(m_layoutTable).paintBoxDecorationBackgroundWithRect(paintInfo, paintOffset, rect);
 }
 
 void TablePainter::paintMask(const PaintInfo& paintInfo, const LayoutPoint& paintOffset)
 {
     if (m_layoutTable.style()->visibility() != VISIBLE || paintInfo.phase != PaintPhaseMask)
         return;
 
-    if (LayoutObjectDrawingRecorder::useCachedDrawingIfPossible(*paintInfo.context, m_layoutTable, paintInfo.phase))
+    if (LayoutObjectDrawingRecorder::useCachedDrawingIfPossible(*paintInfo.context, m_layoutTable, paintInfo.phase, paintOffset))
         return;
 
     LayoutRect rect(paintOffset, m_layoutTable.size());
     m_layoutTable.subtractCaptionRect(rect);
-    LayoutObjectDrawingRecorder recorder(*paintInfo.context, m_layoutTable, paintInfo.phase, pixelSnappedIntRect(rect));
+    LayoutObjectDrawingRecorder recorder(*paintInfo.context, m_layoutTable, paintInfo.phase, pixelSnappedIntRect(rect), paintOffset);
     BoxPainter(m_layoutTable).paintMaskImages(paintInfo, rect);
 }
 
 } // namespace blink