(WIP) Invalidation during painting (for synchronized painting)

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

Index: third_party/WebKit/Source/core/paint/HTMLCanvasPainter.cpp
diff --git a/third_party/WebKit/Source/core/paint/HTMLCanvasPainter.cpp b/third_party/WebKit/Source/core/paint/HTMLCanvasPainter.cpp
index ac827b118aa63fe9c9e5196027671822d7aed93f..a1136ebb46d64e5e8271b9707761a5f205f9caab 100644
--- a/third_party/WebKit/Source/core/paint/HTMLCanvasPainter.cpp
+++ b/third_party/WebKit/Source/core/paint/HTMLCanvasPainter.cpp
@@ -16,7 +16,7 @@ namespace blink {
 void HTMLCanvasPainter::paintReplaced(const PaintInfo& paintInfo, const LayoutPoint& paintOffset)
 {
     GraphicsContext& context = paintInfo.context;
-    if (LayoutObjectDrawingRecorder::useCachedDrawingIfPossible(context, m_layoutHTMLCanvas, paintInfo.phase, paintOffset))
+    if (LayoutObjectDrawingRecorder::useCachedDrawingIfPossible(context, m_layoutHTMLCanvas, paintInfo.phase))
         return;
 
     LayoutRect contentRect = m_layoutHTMLCanvas.contentBoxRect();
@@ -24,7 +24,7 @@ void HTMLCanvasPainter::paintReplaced(const PaintInfo& paintInfo, const LayoutPo
     LayoutRect paintRect = m_layoutHTMLCanvas.replacedContentRect();
     paintRect.moveBy(paintOffset);
 
-    LayoutObjectDrawingRecorder drawingRecorder(context, m_layoutHTMLCanvas, paintInfo.phase, contentRect, paintOffset);
+    LayoutObjectDrawingRecorder drawingRecorder(context, m_layoutHTMLCanvas, paintInfo.phase, contentRect);
 #if ENABLE(ASSERT)
     // The drawing may be in display list mode or image mode, producing different pictures for the same result.
     drawingRecorder.setUnderInvalidationCheckingMode(DrawingDisplayItem::CheckBitmap);