Oilpan: Remove most WillBe types from the code base

third_party/WebKit/Source/core/events/EventFactory.h

Index: third_party/WebKit/Source/core/events/EventFactory.h
diff --git a/third_party/WebKit/Source/core/events/EventFactory.h b/third_party/WebKit/Source/core/events/EventFactory.h
index 8058a01b285b8518d40193ee273dfc3b0af77e21..bb8b6ab7d8d97c574e1200d7071dc9e070832d36 100644
--- a/third_party/WebKit/Source/core/events/EventFactory.h
+++ b/third_party/WebKit/Source/core/events/EventFactory.h
@@ -38,7 +38,7 @@ class Event;
 class EventFactoryBase {
     USING_FAST_MALLOC(EventFactoryBase);
 public:
-    virtual PassRefPtrWillBeRawPtr<Event> create(const String& eventType) = 0;
+    virtual RawPtr<Event> create(const String& eventType) = 0;
     virtual ~EventFactoryBase() { }
 
 protected:
@@ -52,7 +52,7 @@ public:
         return adoptPtr(new EventFactory());
     }
 
-    PassRefPtrWillBeRawPtr<Event> create(const String& eventType) override;
+    RawPtr<Event> create(const String& eventType) override;
 };
 
 } // namespace blink