[Slimming Paint] Allow 3D transforms of different types.

Source/core/paint/LayerPainter.cpp

Index: Source/core/paint/LayerPainter.cpp
diff --git a/Source/core/paint/LayerPainter.cpp b/Source/core/paint/LayerPainter.cpp
index 96978f9df95c024ee19197bdb0582aa6f744f740..db6606a09a961db40e72a1762e721658f2e06244 100644
--- a/Source/core/paint/LayerPainter.cpp
+++ b/Source/core/paint/LayerPainter.cpp
@@ -395,7 +395,7 @@ void LayerPainter::paintFragmentByApplyingTransform(GraphicsContext* context, co
     transform.translateRight(roundedDelta.x(), roundedDelta.y());
     LayoutSize adjustedSubPixelAccumulation = paintingInfo.subPixelAccumulation + (delta - roundedDelta);
 
-    Transform3DRecorder transform3DRecorder(*context, m_renderLayer.layoutObject()->displayItemClient(), transform);
+    Transform3DRecorder transform3DRecorder(*context, m_renderLayer.layoutObject()->displayItemClient(), DisplayItem::Transform3DElementTransform, transform);
 
     // Now do a paint with the root layer shifted to be us.
     LayerPaintingInfo transformedPaintingInfo(&m_renderLayer, LayoutRect(enclosingIntRect(transform.inverse().mapRect(paintingInfo.paintDirtyRect))), paintingInfo.paintBehavior,
@@ -586,7 +586,7 @@ void LayerPainter::paintChildLayerIntoColumns(GraphicsContext* context, const La
                 TransformationMatrix transform;
                 transform.translateRight(roundToInt(childOffset.x() + offset.width()), roundToInt(childOffset.y() + offset.height()));
 
-                Transform3DRecorder transform3DRecorder(*context, m_renderLayer.layoutObject()->displayItemClient(), transform);
+                Transform3DRecorder transform3DRecorder(*context, m_renderLayer.layoutObject()->displayItemClient(), DisplayItem::Transform3DElementTransform, transform);

[chrishtr, 2015/03/17 19:59:14]

Is this the same type as the other call site?

[jbroman, 2015/03/17 20:16:56]

Yes, it is.

 
                 // Now do a paint with the root layer shifted to be the next multicol block.
                 LayerPaintingInfo columnPaintingInfo(paintingInfo);