Gracefully handle mixed content checking on detached resource fetches.

Source/core/html/parser/XSSAuditor.cpp

 /*
  * Copyright (C) 2011 Adam Barth. All Rights Reserved.
  * Copyright (C) 2011 Daniel Bates (dbates@intudata.com).
  *
  * 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 23 matching lines @@
 #include "core/frame/LocalFrame.h"
 #include "core/frame/Settings.h"
 #include "core/frame/csp/ContentSecurityPolicy.h"
 #include "core/html/HTMLParamElement.h"
 #include "core/html/parser/HTMLDocumentParser.h"
 #include "core/html/parser/HTMLParserIdioms.h"
 #include "core/html/parser/TextResourceDecoder.h"
 #include "core/html/parser/XSSAuditorDelegate.h"
 #include "core/inspector/ConsoleMessage.h"
 #include "core/loader/DocumentLoader.h"
+#include "core/loader/MixedContentChecker.h"
 #include "platform/JSONValues.h"
 #include "platform/network/FormData.h"
 #include "platform/text/DecodeEscapeSequences.h"
 #include "wtf/ASCIICType.h"
 #include "wtf/MainThread.h"
 
 namespace {
 
 // SecurityOrigin::urlWithUniqueSecurityOrigin() can't be used cross-thread, or we'd use it instead.
 const char kURLWithUniqueOrigin[] = "data:,";
@@ skipping 769 matching lines @@
 
 bool XSSAuditor::isSafeToSendToAnotherThread() const
 {
     return m_documentURL.isSafeToSendToAnotherThread()
         && m_decodedURL.isSafeToSendToAnotherThread()
         && m_decodedHTTPBody.isSafeToSendToAnotherThread()
         && m_httpBodyAsString.isSafeToSendToAnotherThread();
 }
 
 } // namespace blink