Defer loads in new pages/frames if ScopedPageLoadDeferral is active

third_party/WebKit/Source/core/page/ScopedPageLoadDeferrer.h

 /*
  * Copyright (C) 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library 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
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  */
 
 #ifndef ScopedPageLoadDeferrer_h
 #define ScopedPageLoadDeferrer_h
 
 #include "core/CoreExport.h"
-#include "platform/heap/Handle.h"
-#include "wtf/RefPtr.h"
-#include "wtf/Vector.h"
+#include "wtf/Allocator.h"
+#include "wtf/Noncopyable.h"
 
 namespace blink {
 
-class LocalFrame;
 class Page;
 
 class CORE_EXPORT ScopedPageLoadDeferrer final {
     WTF_MAKE_NONCOPYABLE(ScopedPageLoadDeferrer);
     USING_FAST_MALLOC(ScopedPageLoadDeferrer);
 public:
-    explicit ScopedPageLoadDeferrer(Page* exclusion = nullptr);
+    explicit ScopedPageLoadDeferrer();
     ~ScopedPageLoadDeferrer();
 
-private:
-    void setDefersLoading(bool);
-
-    Vector<Persistent<Page>, 16> m_deferredPages;
+    static bool isActive();
 };
 
 } // namespace blink
 
 #endif // ScopedPageLoadDeferrer_h