Oilpan: Remove most WillBe types from the code base

third_party/WebKit/Source/bindings/core/v8/CustomElementConstructorBuilder.h

Index: third_party/WebKit/Source/bindings/core/v8/CustomElementConstructorBuilder.h
diff --git a/third_party/WebKit/Source/bindings/core/v8/CustomElementConstructorBuilder.h b/third_party/WebKit/Source/bindings/core/v8/CustomElementConstructorBuilder.h
index aa246b60d287ffac97621e1316236eb625f6bada..c1572fe209e2575462d6bb07cd32d300507b9861 100644
--- a/third_party/WebKit/Source/bindings/core/v8/CustomElementConstructorBuilder.h
+++ b/third_party/WebKit/Source/bindings/core/v8/CustomElementConstructorBuilder.h
@@ -65,7 +65,7 @@ public:
 
     bool isFeatureAllowed() const;
     bool validateOptions(const AtomicString& type, QualifiedName& tagName, ExceptionState&);
-    PassRefPtrWillBeRawPtr<CustomElementLifecycleCallbacks> createCallbacks();
+    RawPtr<CustomElementLifecycleCallbacks> createCallbacks();
     bool createConstructor(Document*, CustomElementDefinition*, ExceptionState&);
     bool didRegisterDefinition(CustomElementDefinition*) const;
 
@@ -83,7 +83,7 @@ private:
     const ElementRegistrationOptions& m_options;
     v8::Local<v8::Object> m_prototype;
     v8::Local<v8::Function> m_constructor;
-    RefPtrWillBeMember<V8CustomElementLifecycleCallbacks> m_callbacks;
+    Member<V8CustomElementLifecycleCallbacks> m_callbacks;
 };
 
 } // namespace blink