Oilpan: Remove most WillBe types from the code base

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

Index: third_party/WebKit/Source/core/dom/CDATASection.h
diff --git a/third_party/WebKit/Source/core/dom/CDATASection.h b/third_party/WebKit/Source/core/dom/CDATASection.h
index c461800ba36f4f7d1646b9dba3502cd81b800562..a0127c13d8d89f7d2efb21deb4b0d69530ed467b 100644
--- a/third_party/WebKit/Source/core/dom/CDATASection.h
+++ b/third_party/WebKit/Source/core/dom/CDATASection.h
@@ -30,14 +30,14 @@ namespace blink {
 class CDATASection final : public Text {
     DEFINE_WRAPPERTYPEINFO();
 public:
-    static PassRefPtrWillBeRawPtr<CDATASection> create(Document&, const String&);
+    static RawPtr<CDATASection> create(Document&, const String&);
 
 private:
     CDATASection(Document&, const String&);
 
     String nodeName() const override;
     NodeType nodeType() const override;
-    PassRefPtrWillBeRawPtr<Text> cloneWithData(const String&) override;
+    RawPtr<Text> cloneWithData(const String&) override;
 };
 
 DEFINE_NODE_TYPE_CASTS(CDATASection, nodeType() == Node::CDATA_SECTION_NODE);