[SPInvalidation] Use GeometryMapper in PaintLayerClipper for paint.

third_party/WebKit/Source/core/layout/compositing/CompositedLayerMapping.cpp

 /*
  * Copyright (C) 2009, 2010, 2011 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 529 matching lines @@
   // This means that we need to check if we are actually clipped before
   // setting up m_ancestorClippingLayer otherwise
   // updateAncestorClippingLayerGeometry will fail as the clip rect will be
   // infinite.
   // FIXME: this should use cached clip rects, but this sometimes give
   // inaccurate results (and trips the ASSERTS in PaintLayerClipper).
   ClipRectsContext clipRectsContext(compositingAncestor, UncachedClipRects,
                                     IgnoreOverlayScrollbarSize);
   clipRectsContext.setIgnoreOverflowClip();
   LayoutRect unsnappedParentClipRect =
-      m_owningLayer.clipper().backgroundClipRect(clipRectsContext).rect();
+      m_owningLayer.clipper(PaintLayer::DoNotUseGeometryMapper)
+          .backgroundClipRect(clipRectsContext)
+          .rect();
   IntRect parentClipRect = pixelSnappedIntRect(unsnappedParentClipRect);
   owningLayerIsClipped = parentClipRect != LayoutRect::infiniteIntRect();
 
   // TODO(schenney): CSS clips are not applied to composited children, and
   // should be via mask or by compositing the parent too.
   // https://bugs.chromium.org/p/chromium/issues/detail?id=615870
   DCHECK(clippingContainer->style());
   owningLayerIsMasked =
       owningLayerIsClipped && clippingContainer->style()->hasBorderRadius() &&
       !ancestorRoundedCornersWontClip(layoutObject(), clippingContainer);
@@ skipping 574 matching lines @@
     const PaintLayer* compositingContainer,
     const IntPoint& snappedOffsetFromCompositedAncestor,
     IntPoint& graphicsLayerParentLocation) {
   if (!compositingContainer || !m_ancestorClippingLayer)
     return;
 
   ClipRectsContext clipRectsContext(compositingContainer,
                                     PaintingClipRectsIgnoringOverflowClip,
                                     IgnoreOverlayScrollbarSize);
   IntRect parentClipRect = pixelSnappedIntRect(
-      m_owningLayer.clipper().backgroundClipRect(clipRectsContext).rect());
+      m_owningLayer.clipper(PaintLayer::DoNotUseGeometryMapper)
+          .backgroundClipRect(clipRectsContext)
+          .rect());
   ASSERT(parentClipRect != LayoutRect::infiniteIntRect());
   m_ancestorClippingLayer->setPosition(
       FloatPoint(parentClipRect.location() - graphicsLayerParentLocation));
   m_ancestorClippingLayer->setSize(FloatSize(parentClipRect.size()));
 
   // backgroundRect is relative to compositingContainer, so subtract
   // snappedOffsetFromCompositedAncestor.X/snappedOffsetFromCompositedAncestor.Y
   // to get back to local coords.
   m_ancestorClippingLayer->setOffsetFromLayoutObject(
       parentClipRect.location() - snappedOffsetFromCompositedAncestor);
@@ skipping 1697 matching lines @@
       containingSquashedLayer(clippingContainer, layers, layers.size());
   // Must be there, otherwise
   // CompositingLayerAssigner::canSquashIntoCurrentSquashingOwner would have
   // disallowed squashing.
   ASSERT(ancestorPaintInfo);
 
   // FIXME: this is a potential performance issue. We should consider caching
   // these clip rects or otherwise optimizing.
   ClipRectsContext clipRectsContext(ancestorPaintInfo->paintLayer,
                                     UncachedClipRects);
-  IntRect parentClipRect =
-      pixelSnappedIntRect(paintInfo.paintLayer->clipper()
-                              .backgroundClipRect(clipRectsContext)
-                              .rect());
+  IntRect parentClipRect = pixelSnappedIntRect(
+      paintInfo.paintLayer->clipper(PaintLayer::DoNotUseGeometryMapper)
+          .backgroundClipRect(clipRectsContext)
+          .rect());
   ASSERT(parentClipRect != LayoutRect::infiniteIntRect());
 
   // Convert from ancestor to local coordinates.
   IntSize ancestorToLocalOffset = paintInfo.offsetFromLayoutObject -
                                   ancestorPaintInfo->offsetFromLayoutObject;
   parentClipRect.move(ancestorToLocalOffset);
   return parentClipRect;
 }
 
 void CompositedLayerMapping::doPaintTask(
@@ skipping 596 matching lines @@
   } else if (graphicsLayer == m_decorationOutlineLayer.get()) {
     name = "Decoration Layer";
   } else {
     ASSERT_NOT_REACHED();
   }
 
   return name;
 }
 
 }  // namespace blink