Oilpan: Remove most WillBe types from the code base

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

Index: third_party/WebKit/Source/core/html/FormAssociatedElement.h
diff --git a/third_party/WebKit/Source/core/html/FormAssociatedElement.h b/third_party/WebKit/Source/core/html/FormAssociatedElement.h
index 5e95de75f5f4f8543a81e23cd4cf7ead6d31d7ef..32c6dc3b1d6adeadca5704ff1d7777d60435a8df 100644
--- a/third_party/WebKit/Source/core/html/FormAssociatedElement.h
+++ b/third_party/WebKit/Source/core/html/FormAssociatedElement.h
@@ -40,7 +40,7 @@ class HTMLFormElement;
 class Node;
 class ValidityState;
 
-class CORE_EXPORT FormAssociatedElement : public WillBeGarbageCollectedMixin {
+class CORE_EXPORT FormAssociatedElement : public GarbageCollectedMixin {
 public:
     virtual ~FormAssociatedElement();
 
@@ -92,7 +92,7 @@ public:
 
     void formAttributeTargetChanged();
 
-    typedef WillBeHeapVector<RawPtrWillBeMember<FormAssociatedElement>> List;
+    typedef HeapVector<Member<FormAssociatedElement>> List;
 
     DECLARE_VIRTUAL_TRACE();
 
@@ -123,12 +123,12 @@ private:
     virtual void derefFormAssociatedElement() = 0;
 #endif
 
-    void setFormAttributeTargetObserver(PassOwnPtrWillBeRawPtr<FormAttributeTargetObserver>);
+    void setFormAttributeTargetObserver(RawPtr<FormAttributeTargetObserver>);
     void resetFormAttributeTargetObserver();
 
-    OwnPtrWillBeMember<FormAttributeTargetObserver> m_formAttributeTargetObserver;
-    WeakPtrWillBeMember<HTMLFormElement> m_form;
-    OwnPtrWillBeMember<ValidityState> m_validityState;
+    Member<FormAttributeTargetObserver> m_formAttributeTargetObserver;
+    Member<HTMLFormElement> m_form;
+    Member<ValidityState> m_validityState;
     String m_customValidationMessage;
     // Non-Oilpan: Even if m_formWasSetByParser is true, m_form can be null
     // because parentNode is not a strong reference and |this| and m_form don't