| Index: Source/core/dom/custom/CustomElementMicrotaskImportStep.cpp | 
| diff --git a/Source/core/dom/custom/CustomElementMicrotaskImportStep.cpp b/Source/core/dom/custom/CustomElementMicrotaskImportStep.cpp | 
| index 99f37c9c6b96ac8f9ef0da144f90b73da7c1309c..39f6bd2a10d7da687751409d43a631b23e0c67df 100644 | 
| --- a/Source/core/dom/custom/CustomElementMicrotaskImportStep.cpp | 
| +++ b/Source/core/dom/custom/CustomElementMicrotaskImportStep.cpp | 
| @@ -55,6 +55,12 @@ CustomElementMicrotaskImportStep::~CustomElementMicrotaskImportStep() | 
| { | 
| } | 
|  | 
| +void CustomElementMicrotaskImportStep::parentWasChanged() | 
| +{ | 
| +    m_queue = CustomElementMicrotaskQueue::create(); | 
| +    m_import.clear(); | 
| +} | 
| + | 
| bool CustomElementMicrotaskImportStep::shouldWaitForImport() const | 
| { | 
| return m_import && !m_import->isLoaded(); | 
|  |