(WIP) Invalidation during painting (for synchronized painting)

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

 // Copyright 2015 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 "core/paint/SVGMaskPainter.h"
 
 #include "core/layout/svg/LayoutSVGResourceMasker.h"
 #include "core/paint/LayoutObjectDrawingRecorder.h"
 #include "core/paint/PaintInfo.h"
 #include "core/paint/TransformRecorder.h"
@@ skipping 33 matching lines @@
     }
 
     context.paintController().endItem<EndCompositingDisplayItem>(object);
 }
 
 void SVGMaskPainter::drawMaskForLayoutObject(GraphicsContext& context, const LayoutObject& layoutObject, const FloatRect& targetBoundingBox, const FloatRect& targetPaintInvalidationRect)
 {
     AffineTransform contentTransformation;
     RefPtr<const SkPicture> maskContentPicture = m_mask.createContentPicture(contentTransformation, targetBoundingBox, context);
 
-    if (LayoutObjectDrawingRecorder::useCachedDrawingIfPossible(context, layoutObject, DisplayItem::SVGMask, LayoutPoint()))
+    if (LayoutObjectDrawingRecorder::useCachedDrawingIfPossible(context, layoutObject, DisplayItem::SVGMask))
         return;
 
-    LayoutObjectDrawingRecorder drawingRecorder(context, layoutObject, DisplayItem::SVGMask, targetPaintInvalidationRect, LayoutPoint());
+    LayoutObjectDrawingRecorder drawingRecorder(context, layoutObject, DisplayItem::SVGMask, targetPaintInvalidationRect);
     context.save();
     context.concatCTM(contentTransformation);
     context.drawPicture(maskContentPicture.get());
     context.restore();
 }
 
 } // namespace blink