XHR: Abort DocumentParser on internalAbort

Source/core/xml/XMLHttpRequest.cpp

Index: Source/core/xml/XMLHttpRequest.cpp
diff --git a/Source/core/xml/XMLHttpRequest.cpp b/Source/core/xml/XMLHttpRequest.cpp
index 0133c246396b3a46e04566d65fcb0f683429f827..e6feca801baa3e4b3d1bd041a0a037de1fd3ca21 100644
--- a/Source/core/xml/XMLHttpRequest.cpp
+++ b/Source/core/xml/XMLHttpRequest.cpp
@@ -914,6 +914,13 @@ void XMLHttpRequest::clearVariablesForLoading()
 {
     m_decoder.clear();
 
+    if (m_responseDocumentParser) {
+#if !ENABLE(OILPAN)
+        m_responseDocumentParser->detach();
+#endif
+        m_responseDocumentParser = nullptr;
+    }
+
     m_finalResponseCharset = String();
 }
 
@@ -921,6 +928,9 @@ bool XMLHttpRequest::internalAbort()
 {
     m_error = true;
 
+    if (m_responseDocumentParser && !m_responseDocumentParser->isStopped())
+        m_responseDocumentParser->stopParsing();
+
     clearVariablesForLoading();
 
     InspectorInstrumentation::didFailXHRLoading(executionContext(), this, this);
@@ -971,7 +981,6 @@ void XMLHttpRequest::clearResponse()
 
     m_parsedResponse = false;
     m_responseDocument = nullptr;
-    m_responseDocumentParser = nullptr;
 
     m_responseBlob = nullptr;
     m_downloadedBlobLength = 0;