Have detached ScriptLoaders detach their PendingScripts.

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

Index: third_party/WebKit/Source/core/dom/ScriptLoader.cpp
diff --git a/third_party/WebKit/Source/core/dom/ScriptLoader.cpp b/third_party/WebKit/Source/core/dom/ScriptLoader.cpp
index 6ab367b7c14f6272c6b0911d803356756ee4cb48..7330d2e3e9514140b75634f1cc20852e3c602dc5 100644
--- a/third_party/WebKit/Source/core/dom/ScriptLoader.cpp
+++ b/third_party/WebKit/Source/core/dom/ScriptLoader.cpp
@@ -465,8 +465,10 @@ void ScriptLoader::notifyFinished(Resource* resource)
     DCHECK(!m_willBeParserExecuted);
 
     Document* contextDocument = m_element->document().contextDocument();
-    if (!contextDocument)
+    if (!contextDocument) {
+        detach();
         return;
+    }
 
     ASSERT_UNUSED(resource, resource == m_resource);