Oilpan: Remove most WillBe types from the code base

third_party/WebKit/Source/core/dom/EmptyNodeList.h

Index: third_party/WebKit/Source/core/dom/EmptyNodeList.h
diff --git a/third_party/WebKit/Source/core/dom/EmptyNodeList.h b/third_party/WebKit/Source/core/dom/EmptyNodeList.h
index 4fbfc6585b9fd82d945d10cebb249236ebe8665d..c82a24f3df9a4fc9ea55cf816ad1d335a4ba2345 100644
--- a/third_party/WebKit/Source/core/dom/EmptyNodeList.h
+++ b/third_party/WebKit/Source/core/dom/EmptyNodeList.h
@@ -39,9 +39,9 @@ namespace blink {
 
 class EmptyNodeList final : public NodeList {
 public:
-    static PassRefPtrWillBeRawPtr<EmptyNodeList> create(Node& rootNode)
+    static RawPtr<EmptyNodeList> create(Node& rootNode)
     {
-        return adoptRefWillBeNoop(new EmptyNodeList(rootNode));
+        return new EmptyNodeList(rootNode);
     }
     ~EmptyNodeList() override;
 
@@ -58,7 +58,7 @@ private:
     bool isEmptyNodeList() const override { return true; }
     Node* virtualOwnerNode() const override;
 
-    RefPtrWillBeMember<Node> m_owner;
+    Member<Node> m_owner;
 };
 
 DEFINE_TYPE_CASTS(EmptyNodeList, NodeList, nodeList, nodeList->isEmptyNodeList(), nodeList.isEmptyNodeList());