(WIP) Invalidation during painting (for synchronized painting)

third_party/WebKit/Source/core/paint/TableCellPainter.cpp

Index: third_party/WebKit/Source/core/paint/TableCellPainter.cpp
diff --git a/third_party/WebKit/Source/core/paint/TableCellPainter.cpp b/third_party/WebKit/Source/core/paint/TableCellPainter.cpp
index 6c14e2660979408fa04745cdcf64e4c062fea5bc..7fcfcbad8a8e91b32a93ef2b1c6222a630ac0563 100644
--- a/third_party/WebKit/Source/core/paint/TableCellPainter.cpp
+++ b/third_party/WebKit/Source/core/paint/TableCellPainter.cpp
@@ -115,10 +115,10 @@ void TableCellPainter::paintCollapsedBorders(const PaintInfo& paintInfo, const L
         return;
 
     GraphicsContext& graphicsContext = paintInfo.context;
-    if (LayoutObjectDrawingRecorder::useCachedDrawingIfPossible(graphicsContext, m_layoutTableCell, static_cast<DisplayItem::Type>(displayItemType), adjustedPaintOffset))
+    if (LayoutObjectDrawingRecorder::useCachedDrawingIfPossible(graphicsContext, m_layoutTableCell, static_cast<DisplayItem::Type>(displayItemType)))
         return;
 
-    LayoutObjectDrawingRecorder recorder(graphicsContext, m_layoutTableCell, static_cast<DisplayItem::Type>(displayItemType), borderRect, adjustedPaintOffset);
+    LayoutObjectDrawingRecorder recorder(graphicsContext, m_layoutTableCell, static_cast<DisplayItem::Type>(displayItemType), borderRect);
     Color cellColor = m_layoutTableCell.resolveColor(CSSPropertyColor);
 
     // We never paint diagonals at the joins.  We simply let the border with the highest
@@ -159,7 +159,7 @@ void TableCellPainter::paintBackgroundsBehindCell(const PaintInfo& paintInfo, co
     Optional<LayoutObjectDrawingRecorder> recorder;
     if (backgroundObject != &m_layoutTableCell) {
         LayoutPoint adjustedPaintOffset = paintRect.location();
-        if (LayoutObjectDrawingRecorder::useCachedDrawingIfPossible(paintInfo.context, m_layoutTableCell, type, adjustedPaintOffset))
+        if (LayoutObjectDrawingRecorder::useCachedDrawingIfPossible(paintInfo.context, m_layoutTableCell, type))
             return;
         recorder.emplace(paintInfo.context, m_layoutTableCell, type, paintRect, adjustedPaintOffset);
     } else {
@@ -192,13 +192,13 @@ void TableCellPainter::paintBoxDecorationBackground(const PaintInfo& paintInfo,
     if (!m_layoutTableCell.hasBackground() && !m_layoutTableCell.styleRef().boxShadow() && !needsToPaintBorder)
         return;
 
-    if (LayoutObjectDrawingRecorder::useCachedDrawingIfPossible(paintInfo.context, m_layoutTableCell, DisplayItem::BoxDecorationBackground, paintOffset))
+    if (LayoutObjectDrawingRecorder::useCachedDrawingIfPossible(paintInfo.context, m_layoutTableCell, DisplayItem::BoxDecorationBackground))
         return;
 
     LayoutRect visualOverflowRect = m_layoutTableCell.visualOverflowRect();
     visualOverflowRect.moveBy(paintOffset);
     // TODO(chrishtr): the pixel-snapping here is likely incorrect.
-    LayoutObjectDrawingRecorder recorder(paintInfo.context, m_layoutTableCell, DisplayItem::BoxDecorationBackground, pixelSnappedIntRect(visualOverflowRect), paintOffset);
+    LayoutObjectDrawingRecorder recorder(paintInfo.context, m_layoutTableCell, DisplayItem::BoxDecorationBackground, pixelSnappedIntRect(visualOverflowRect));
 
     LayoutRect paintRect = paintBounds(paintOffset, DoNotAddOffsetFromParent);
 
@@ -224,11 +224,11 @@ void TableCellPainter::paintMask(const PaintInfo& paintInfo, const LayoutPoint&
     if (!tableElt->collapseBorders() && m_layoutTableCell.style()->emptyCells() == HIDE && !m_layoutTableCell.firstChild())
         return;
 
-    if (LayoutObjectDrawingRecorder::useCachedDrawingIfPossible(paintInfo.context, m_layoutTableCell, paintInfo.phase, paintOffset))
+    if (LayoutObjectDrawingRecorder::useCachedDrawingIfPossible(paintInfo.context, m_layoutTableCell, paintInfo.phase))
         return;
 
     LayoutRect paintRect = paintBounds(paintOffset, DoNotAddOffsetFromParent);
-    LayoutObjectDrawingRecorder recorder(paintInfo.context, m_layoutTableCell, paintInfo.phase, paintRect, paintOffset);
+    LayoutObjectDrawingRecorder recorder(paintInfo.context, m_layoutTableCell, paintInfo.phase, paintRect);
     BoxPainter(m_layoutTableCell).paintMaskImages(paintInfo, paintRect);
 }