Oilpan: Remove most WillBe types from the code base

third_party/WebKit/Source/core/html/HTMLDocument.h

Index: third_party/WebKit/Source/core/html/HTMLDocument.h
diff --git a/third_party/WebKit/Source/core/html/HTMLDocument.h b/third_party/WebKit/Source/core/html/HTMLDocument.h
index b7e42250157048b0c63824a0bd92c38dca03395c..ead37c8bcd0796877c034b9042c0b7c9a5846d6a 100644
--- a/third_party/WebKit/Source/core/html/HTMLDocument.h
+++ b/third_party/WebKit/Source/core/html/HTMLDocument.h
@@ -34,9 +34,9 @@ class HTMLBodyElement;
 class CORE_EXPORT HTMLDocument : public Document, public ResourceClient {
     DEFINE_WRAPPERTYPEINFO();
 public:
-    static PassRefPtrWillBeRawPtr<HTMLDocument> create(const DocumentInit& initializer = DocumentInit())
+    static RawPtr<HTMLDocument> create(const DocumentInit& initializer = DocumentInit())
     {
-        return adoptRefWillBeNoop(new HTMLDocument(initializer));
+        return (new HTMLDocument(initializer));
     }
     ~HTMLDocument() override;
 
@@ -66,7 +66,7 @@ public:
 
     static bool isCaseSensitiveAttribute(const QualifiedName&);
 
-    PassRefPtrWillBeRawPtr<Document> cloneDocumentWithoutChildren() final;
+    RawPtr<Document> cloneDocumentWithoutChildren() final;
 
 protected:
     HTMLDocument(const DocumentInit&, DocumentClassFlags extendedDocumentClasses = DefaultDocumentClass);