Tidy PendingScript

third_party/WebKit/Source/core/dom/PendingScript.cpp

 /*
  * Copyright (C) 2010 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 29 matching lines @@
 }
 
 PendingScript::PendingScript(Element* element, ScriptResource* resource)
     : m_watchingForLoad(false)
     , m_element(element)
     , m_integrityFailure(false)
     , m_parserBlockingLoadStartTime(0)
     , m_client(nullptr)
 {
     setScriptResource(resource);
-    ThreadState::current()->registerPreFinalizer(this);
 }
 
 PendingScript::~PendingScript()
 {
+    // Verify explicit dispose().
+    CHECK(!m_client && !m_element && !m_streamer);
 }
 
 void PendingScript::dispose()
 {
     if (!m_client)
         return;
     stopWatchingForLoad();
     releaseElementAndClear();
 }
 
-PendingScript& PendingScript::operator=(const PendingScript& other)
-{
-    if (this == &other)
-        return *this;
-
-    m_watchingForLoad = other.m_watchingForLoad;
-    m_element = other.m_element;
-    m_startingPosition = other.m_startingPosition;
-    m_integrityFailure = other.m_integrityFailure;
-    m_streamer = other.m_streamer;
-    this->ResourceOwner<ScriptResource, ScriptResourceClient>::operator=(other);
-    return *this;
-}
-
 void PendingScript::watchForLoad(ScriptResourceClient* client)
 {
     DCHECK(!m_watchingForLoad);
     // addClient() will call streamingFinished() if the load is complete. Callers
     // who do not expect to be re-entered from this call should not call
     // watchForLoad for a PendingScript which isReady. We also need to set
     // m_watchingForLoad early, since addClient() can result in calling
     // notifyFinished and further stopWatchingForLoad().
     m_watchingForLoad = true;
     m_client = client;
@@ skipping 145 matching lines @@
 bool PendingScript::errorOccurred() const
 {
     if (resource())
         return resource()->errorOccurred();
     if (m_streamer && m_streamer->resource())
         return m_streamer->resource()->errorOccurred();
     return false;
 }
 
 } // namespace blink