Merge 76652

Source/WebCore/html/DOMURL.cpp

 /*
  * Copyright (C) 2011 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
@@ skipping 19 matching lines @@
 #include "DOMURL.h"
 
 #include "KURL.h"
 #include "ScriptExecutionContext.h"
 
 namespace WebCore {
 
 DOMURL::DOMURL(ScriptExecutionContext* scriptExecutionContext)
     : m_scriptExecutionContext(scriptExecutionContext)
 {
+    m_scriptExecutionContext->createdDomUrl(this);
+}
+
+DOMURL::~DOMURL()
+{
+    if (m_scriptExecutionContext)
+        m_scriptExecutionContext->destroyedDomUrl(this);
+}
+
+void DOMURL::contextDestroyed()
+{
+    ASSERT(m_scriptExecutionContext);
+    m_scriptExecutionContext = 0;
 }
 
 String DOMURL::createObjectURL(Blob* blob)
 {
     if (!m_scriptExecutionContext)
         return String();
     return m_scriptExecutionContext->createPublicBlobURL(blob).string();
 }
 
 void DOMURL::revokeObjectURL(const String& urlString)
 {
     if (!m_scriptExecutionContext)
         return;
     m_scriptExecutionContext->revokePublicBlobURL(KURL(KURL(), urlString));
 }
 
 } // namespace WebCore
 
 #endif // ENABLE(BLOB)