Add mask layer and offsetFromLayoutObject info to GraphicsLayer JSON

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

Index: third_party/WebKit/Source/core/paint/FilterPainter.cpp
diff --git a/third_party/WebKit/Source/core/paint/FilterPainter.cpp b/third_party/WebKit/Source/core/paint/FilterPainter.cpp
index b818723434592b8150efe6a6fc5c93d766d465c8..46e28f27611bdd247bc89e01b773b8d753f0d1ff 100644
--- a/third_party/WebKit/Source/core/paint/FilterPainter.cpp
+++ b/third_party/WebKit/Source/core/paint/FilterPainter.cpp
@@ -53,10 +53,11 @@ FilterPainter::FilterPainter(PaintLayer& layer,
 
   DCHECK(m_layoutObject);
 
-  if (clipRect.rect() != paintingInfo.paintDirtyRect || clipRect.hasRadius())
+  if (clipRect.rect() != paintingInfo.paintDirtyRect || clipRect.hasRadius()) {
     m_clipRecorder = WTF::wrapUnique(new LayerClipRecorder(
         context, *layer.layoutObject(), DisplayItem::kClipLayerFilter, clipRect,
         &paintingInfo, LayoutPoint(), paintFlags));
+  }
 
   if (!context.getPaintController().displayItemConstructionIsDisabled()) {
     CompositorFilterOperations compositorFilterOperations =