[v8 gc] Introduce a base class for all objects that can have pending activity

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.
  *
  *  This library is distributed in the hope that it will be useful,
  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  *  Lesser General Public License for more details.
  *
  *  You should have received a copy of the GNU Lesser General Public
  *  License along with this library; if not, write to the Free Software
  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  */
 
 #ifndef XMLHttpRequest_h
 #define XMLHttpRequest_h
 
 #include "bindings/core/v8/ScriptString.h"
 #include "bindings/core/v8/ScriptWrappable.h"
+#include "bindings/core/v8/V8GCRoot.h"
 #include "core/dom/ActiveDOMObject.h"
 #include "core/dom/DocumentParserClient.h"
 #include "core/loader/ThreadableLoaderClient.h"
 #include "core/xmlhttprequest/XMLHttpRequestEventTarget.h"
 #include "core/xmlhttprequest/XMLHttpRequestProgressEventThrottle.h"
 #include "platform/heap/Handle.h"
 #include "platform/network/EncodedFormData.h"
 #include "platform/network/HTTPHeaderMap.h"
 #include "platform/network/ResourceResponse.h"
 #include "platform/weborigin/KURL.h"
@@ skipping 22 matching lines @@
 class ScriptState;
 class SharedBuffer;
 class Stream;
 class TextResourceDecoder;
 class ThreadableLoader;
 class WebDataConsumerHandle;
 class XMLHttpRequestUpload;
 
 typedef int ExceptionCode;
 
-class XMLHttpRequest final : public XMLHttpRequestEventTarget, private ThreadableLoaderClient, public DocumentParserClient, public ActiveDOMObject {
+class XMLHttpRequest final : public XMLHttpRequestEventTarget, private ThreadableLoaderClient, public DocumentParserClient, public ActiveDOMObject, public V8GCRoot {
     DEFINE_WRAPPERTYPEINFO();
     WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(XMLHttpRequest);
 public:
     static XMLHttpRequest* create(ScriptState*);
     static XMLHttpRequest* create(ExecutionContext*);
     ~XMLHttpRequest() override;
 
     // These exact numeric values are important because JS expects them.
     enum State {
         UNSENT = 0,
@@ skipping 235 matching lines @@
     bool m_sameOriginRequest;
     // True iff the ongoing resource loading is using the downloadToFile
     // option.
     bool m_downloadingToFile;
     bool m_responseTextOverflow;
 };
 
 } // namespace blink
 
 #endif // XMLHttpRequest_h