Oilpan: Remove most WillBe types from the code base

third_party/WebKit/Source/modules/indexeddb/IDBRequest.h

Index: third_party/WebKit/Source/modules/indexeddb/IDBRequest.h
diff --git a/third_party/WebKit/Source/modules/indexeddb/IDBRequest.h b/third_party/WebKit/Source/modules/indexeddb/IDBRequest.h
index 6e2ed6aa0b96b74088e8d13e6ad008717dd850f4..63d42296362416454ac1090c310072d0261c2597 100644
--- a/third_party/WebKit/Source/modules/indexeddb/IDBRequest.h
+++ b/third_party/WebKit/Source/modules/indexeddb/IDBRequest.h
@@ -59,7 +59,7 @@ class MODULES_EXPORT IDBRequest
     , public ActiveDOMObject {
     REFCOUNTED_GARBAGE_COLLECTED_EVENT_TARGET(IDBRequest);
     DEFINE_WRAPPERTYPEINFO();
-    WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(IDBRequest);
+    USING_GARBAGE_COLLECTED_MIXIN(IDBRequest);
 public:
     static IDBRequest* create(ScriptState*, IDBAny* source, IDBTransaction*);
     ~IDBRequest() override;
@@ -127,14 +127,14 @@ public:
 
 protected:
     IDBRequest(ScriptState*, IDBAny* source, IDBTransaction*);
-    void enqueueEvent(PassRefPtrWillBeRawPtr<Event>);
+    void enqueueEvent(RawPtr<Event>);
     void dequeueEvent(Event*);
     virtual bool shouldEnqueueEvent() const;
     void onSuccessInternal(IDBAny*);
     void setResult(IDBAny*);
 
     // EventTarget
-    bool dispatchEventInternal(PassRefPtrWillBeRawPtr<Event>) override;
+    bool dispatchEventInternal(RawPtr<Event>) override;
 
     bool m_contextStopped = false;
     Member<IDBTransaction> m_transaction;
@@ -152,7 +152,7 @@ private:
     Member<DOMException> m_error;
 
     bool m_hasPendingActivity = true;
-    WillBeHeapVector<RefPtrWillBeMember<Event>> m_enqueuedEvents;
+    HeapVector<Member<Event>> m_enqueuedEvents;
 
     // Only used if the result type will be a cursor.
     IndexedDB::CursorType m_cursorType = IndexedDB::CursorKeyAndValue;