Merge 76652

Source/WebCore/html/DOMURL.cpp

Index: Source/WebCore/html/DOMURL.cpp
===================================================================
--- Source/WebCore/html/DOMURL.cpp	(revision 78138)
+++ Source/WebCore/html/DOMURL.cpp	(working copy)
@@ -37,8 +37,21 @@
 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)