Oilpan: Replace RefPtrs to Node and its subclasses in core/testing with Oilpan transition types.

Source/core/testing/LayerRect.h

Index: Source/core/testing/LayerRect.h
diff --git a/Source/core/testing/LayerRect.h b/Source/core/testing/LayerRect.h
index f47b7e00a02d84f4a446df5d88d3c09f7a2aa27c..1d007f4bc09bc99cea968154cd2fff1b3d3f4daf 100644
--- a/Source/core/testing/LayerRect.h
+++ b/Source/core/testing/LayerRect.h
@@ -45,7 +45,7 @@ class Node;
 
 class LayerRect FINAL : public RefCountedWillBeGarbageCollectedFinalized<LayerRect> {
 public:
-    static PassRefPtrWillBeRawPtr<LayerRect> create(PassRefPtr<Node> node, const String& layerType, int nodeOffsetX, int nodeOffsetY, PassRefPtrWillBeRawPtr<ClientRect> rect)
+    static PassRefPtrWillBeRawPtr<LayerRect> create(PassRefPtrWillBeRawPtr<Node> node, const String& layerType, int nodeOffsetX, int nodeOffsetY, PassRefPtrWillBeRawPtr<ClientRect> rect)
     {
         return adoptRefWillBeNoop(new LayerRect(node, layerType, nodeOffsetX, nodeOffsetY, rect));
     }
@@ -63,7 +63,7 @@ public:
     }
 
 private:
-    LayerRect(PassRefPtr<Node> node, const String& layerName, int nodeOffsetX, int nodeOffsetY, PassRefPtrWillBeRawPtr<ClientRect> rect)
+    LayerRect(PassRefPtrWillBeRawPtr<Node> node, const String& layerName, int nodeOffsetX, int nodeOffsetY, PassRefPtrWillBeRawPtr<ClientRect> rect)
         : m_layerAssociatedNode(node)
         , m_layerType(layerName)
         , m_associatedNodeOffsetX(nodeOffsetX)