Oilpan: Remove most WillBe types from the code base

third_party/WebKit/Source/core/dom/custom/CustomElementProcessingStack.h

Index: third_party/WebKit/Source/core/dom/custom/CustomElementProcessingStack.h
diff --git a/third_party/WebKit/Source/core/dom/custom/CustomElementProcessingStack.h b/third_party/WebKit/Source/core/dom/custom/CustomElementProcessingStack.h
index 9e268584bfa62a37051152018b63bc8db32a9b94..f85bf0cb7cfafff8a1356d572836f31a12102e95 100644
--- a/third_party/WebKit/Source/core/dom/custom/CustomElementProcessingStack.h
+++ b/third_party/WebKit/Source/core/dom/custom/CustomElementProcessingStack.h
@@ -37,8 +37,7 @@
 
 namespace blink {
 
-class CORE_EXPORT CustomElementProcessingStack : public NoBaseWillBeGarbageCollectedFinalized<CustomElementProcessingStack> {
-    USING_FAST_MALLOC_WILL_BE_REMOVED(CustomElementProcessingStack);
+class CORE_EXPORT CustomElementProcessingStack : public GarbageCollectedFinalized<CustomElementProcessingStack> {
     WTF_MAKE_NONCOPYABLE(CustomElementProcessingStack);
 public:
     // This is stack allocated in many DOM callbacks. Make it cheap.
@@ -100,7 +99,7 @@ private:
     // stack appear toward the head of the vector. The first element
     // is a null sentinel value.
     static const size_t kNumSentinels = 1;
-    WillBeHeapVector<RawPtrWillBeMember<CustomElementCallbackQueue>> m_flattenedProcessingStack;
+    HeapVector<Member<CustomElementCallbackQueue>> m_flattenedProcessingStack;
 };
 
 } // namespace blink