Replace ENABLE(ASSERT) with DCHECK_IS_ON().

third_party/WebKit/Source/bindings/core/v8/ScriptFunction.h

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 41 matching lines @@
 // };
 class CORE_EXPORT ScriptFunction
     : public GarbageCollectedFinalized<ScriptFunction> {
  public:
   virtual ~ScriptFunction() {}
   DEFINE_INLINE_VIRTUAL_TRACE() {}
 
  protected:
   explicit ScriptFunction(ScriptState* scriptState)
       : m_scriptState(scriptState)
-#if ENABLE(ASSERT)
-        ,
-        m_bindToV8FunctionAlreadyCalled(false)
-#endif
   {
   }
 
   ScriptState* getScriptState() const { return m_scriptState.get(); }
 
   v8::Local<v8::Function> bindToV8Function();
 
  private:
   virtual ScriptValue call(ScriptValue) = 0;
   static void callCallback(const v8::FunctionCallbackInfo<v8::Value>&);
 
   RefPtr<ScriptState> m_scriptState;
-#if ENABLE(ASSERT)
+#if DCHECK_IS_ON()
   // bindToV8Function must not be called twice.
-  bool m_bindToV8FunctionAlreadyCalled;
+  bool m_bindToV8FunctionAlreadyCalled = false;
 #endif
 };
 
 }  // namespace blink
 
 #endif