Update Source/platform/ to assume Oilpan only.

third_party/WebKit/Source/platform/AsyncMethodRunner.h

Index: third_party/WebKit/Source/platform/AsyncMethodRunner.h
diff --git a/third_party/WebKit/Source/platform/AsyncMethodRunner.h b/third_party/WebKit/Source/platform/AsyncMethodRunner.h
index 66ae3ad16f9a19abf6694ea7229eefb934113aa4..b8ef39ea7b9b60c8d7746ca4608dd188ca6ecfe8 100644
--- a/third_party/WebKit/Source/platform/AsyncMethodRunner.h
+++ b/third_party/WebKit/Source/platform/AsyncMethodRunner.h
@@ -120,11 +120,7 @@ public:
 
     DEFINE_INLINE_TRACE()
     {
-#if ENABLE(OILPAN)
         visitor->trace(m_object);
-#else
-        TraceIfNeeded<typename RawPtrOrMemberTrait<TargetClass>::Type>::trace(visitor, m_object);
-#endif
     }
 
 private:
@@ -144,11 +140,7 @@ private:
 
     Timer<AsyncMethodRunner<TargetClass>> m_timer;
 
-#if ENABLE(OILPAN)
     Member<TargetClass> m_object;
-#else
-    typename RawPtrOrMemberTrait<TargetClass>::Type m_object;
-#endif
     TargetMethod m_method;
 
     bool m_suspended;