XMLHttpRequest: Don't use nullness of isolatedWorldSecurityOrigin to determine whether or not it's …

third_party/WebKit/Source/core/xmlhttprequest/XMLHttpRequest.h

 /*
  *  Copyright (C) 2003, 2006, 2008 Apple Inc. All rights reserved.
  *  Copyright (C) 2005, 2006 Alexey Proskuryakov <ap@nypop.com>
  *  Copyright (C) 2011 Google Inc. All rights reserved.
  *  Copyright (C) 2012 Intel Corporation
  *
  *  This library is free software; you can redistribute it and/or
  *  modify it under the terms of the GNU Lesser General Public
  *  License as published by the Free Software Foundation; either
  *  version 2 of the License, or (at your option) any later version.
@@ skipping 153 matching lines @@
   DEFINE_ATTRIBUTE_EVENT_LISTENER(readystatechange);
 
   // (Also) eagerly finalized so as to prevent access to the eagerly finalized
   // progress event throttle.
   EAGERLY_FINALIZE();
   DECLARE_VIRTUAL_TRACE();
   DECLARE_TRACE_WRAPPERS();
 
  private:
   class BlobLoader;
-  XMLHttpRequest(ExecutionContext*, PassRefPtr<SecurityOrigin>);
+  XMLHttpRequest(ExecutionContext*,
+                 bool isIsolatedWorld,
+                 PassRefPtr<SecurityOrigin>);
 
   Document* document() const;
+
+  // Returns the SecurityOrigin of the isolated world if the XMLHttpRequest was
+  // created in an isolated world. Otherwise, returns the SecurityOrigin of the
+  // execution context.
   SecurityOrigin* getSecurityOrigin() const;
 
   void didSendData(unsigned long long bytesSent,
                    unsigned long long totalBytesToBeSent) override;
   void didReceiveResponse(unsigned long identifier,
                           const ResourceResponse&,
                           std::unique_ptr<WebDataConsumerHandle>) override;
   void didReceiveData(const char* data, unsigned dataLength) override;
   // When responseType is set to "blob", didDownloadData() is called instead
   // of didReceiveData().
@@ skipping 123 matching lines @@
   // An exception to throw in synchronous mode. It's set when failure
   // notification is received from m_loader and thrown at the end of send() if
   // any.
   ExceptionCode m_exceptionCode;
 
   Member<XMLHttpRequestProgressEventThrottle> m_progressEventThrottle;
 
   // An enum corresponding to the allowed string values for the responseType
   // attribute.
   ResponseTypeCode m_responseTypeCode;
+
+  // Set to true if the XMLHttpRequest was created in an isolated world.
+  bool m_isIsolatedWorld;
+  // Stores the SecurityOrigin associated with the isolated world if any.
   RefPtr<SecurityOrigin> m_isolatedWorldSecurityOrigin;
 
   // This blob loader will be used if |m_downloadingToFile| is true and
   // |m_responseTypeCode| is NOT ResponseTypeBlob.
   Member<BlobLoader> m_blobLoader;
 
   // Positive if we are dispatching events.
   // This is an integer specifying the recursion level rather than a boolean
   // because in some cases we have recursive dispatching.
   int m_eventDispatchRecursionLevel;
@@ skipping 12 matching lines @@
   bool m_downloadingToFile;
   bool m_responseTextOverflow;
   bool m_sendFlag;
 };
 
 std::ostream& operator<<(std::ostream&, const XMLHttpRequest*);
 
 }  // namespace blink
 
 #endif  // XMLHttpRequest_h