Remove ActiveScriptWrappableBase::m_scriptWrappable

third_party/WebKit/Source/core/streams/UnderlyingSourceBase.h

 // Copyright 2016 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 UnderlyingSourceBase_h
 #define UnderlyingSourceBase_h
 
 #include "bindings/core/v8/ActiveScriptWrappable.h"
 #include "bindings/core/v8/ScriptPromise.h"
 #include "bindings/core/v8/ScriptState.h"
@@ skipping 32 matching lines @@
   void notifyLockReleased();
 
   // ScriptWrappable
   bool hasPendingActivity() const;
 
   // SuspendableObject
   void contextDestroyed() override;
 
  protected:
   explicit UnderlyingSourceBase(ScriptState* scriptState)
-      : ActiveScriptWrappable<UnderlyingSourceBase>(this),
+      : ActiveScriptWrappable(),
         SuspendableObject(scriptState->getExecutionContext()) {
     this->suspendIfNeeded();
   }
 
   ReadableStreamController* controller() const { return m_controller; }
 
  private:
   Member<ReadableStreamController> m_controller;
   bool m_isStreamLocked = false;
 };
 
 }  // namespace blink
 
 #endif  // UnderlyingSourceBase_h