Oilpan: Remove most WillBe types from the code base

third_party/WebKit/Source/modules/worklet/DOMWindowWorklet.h

Index: third_party/WebKit/Source/modules/worklet/DOMWindowWorklet.h
diff --git a/third_party/WebKit/Source/modules/worklet/DOMWindowWorklet.h b/third_party/WebKit/Source/modules/worklet/DOMWindowWorklet.h
index fe4589ebf8192f1550d166ecd440059fc271c8ad..c3154d5974df609107a5bf0047230f244305fecf 100644
--- a/third_party/WebKit/Source/modules/worklet/DOMWindowWorklet.h
+++ b/third_party/WebKit/Source/modules/worklet/DOMWindowWorklet.h
@@ -15,10 +15,8 @@ class DOMWindow;
 class ExecutionContext;
 class Worklet;
 
-class DOMWindowWorklet final : public NoBaseWillBeGarbageCollected<DOMWindowWorklet>, public WillBeHeapSupplement<LocalDOMWindow>, public DOMWindowProperty {
-    WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(DOMWindowWorklet);
-    DECLARE_EMPTY_VIRTUAL_DESTRUCTOR_WILL_BE_REMOVED(DOMWindowWorklet);
-    USING_FAST_MALLOC_WILL_BE_REMOVED(DOMWindowWorklet);
+class DOMWindowWorklet final : public GarbageCollected<DOMWindowWorklet>, public HeapSupplement<LocalDOMWindow>, public DOMWindowProperty {
+    USING_GARBAGE_COLLECTED_MIXIN(DOMWindowWorklet);
 public:
     static DOMWindowWorklet& from(LocalDOMWindow&);
     static Worklet* renderWorklet(ExecutionContext*, DOMWindow&);
@@ -30,7 +28,7 @@ private:
     explicit DOMWindowWorklet(LocalDOMWindow&);
     static const char* supplementName();
 
-    mutable PersistentWillBeMember<Worklet> m_renderWorklet;
+    mutable Member<Worklet> m_renderWorklet;
 };
 
 } // namespace blink