ASSERT that Visitor::mark is only called when inGC()

Source/platform/heap/InlinedGlobalMarkingVisitor.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef InlinedGlobalMarkingVisitor_h
 #define InlinedGlobalMarkingVisitor_h
 
 #include "platform/heap/MarkingVisitorImpl.h"
 
 namespace blink {
@@ skipping 62 matching lines @@
         m_visitor->recordObjectGraphEdge(objectPointer);
     }
 #endif
 
 private:
     static InlinedGlobalMarkingVisitor fromHelper(Helper* helper)
     {
         return *static_cast<InlinedGlobalMarkingVisitor*>(helper);
     }
 
+#if ENABLE(ASSERT)
+    inline void checkIsMarkingAllowed() { getUninlined()->checkIsMarkingAllowed(); }
+    inline void setAllowTraceForHashTableWeakProcessing(bool allow)
+    {
+        getUninlined()->setAllowTraceForHashTableWeakProcessing(allow);
+    }
+#endif
+
     Visitor* m_visitor;
 };
 
 // If T does not support trace(InlinedGlobalMarkingVisitor).
 template <typename T>
 struct TraceCompatibilityAdaptor<T, false> {
     inline static void trace(blink::Visitor* visitor, T* self)
     {
         self->trace(visitor);
     }
@@ skipping 20 matching lines @@
 
     inline static void trace(InlinedGlobalMarkingVisitor visitor, T* self)
     {
         self->trace(visitor);
     }
 };
 
 } // namespace blink
 
 #endif