Make sure pages that are closing but not yet closed are still suspended.

third_party/WebKit/Source/core/page/ScopedPageSuspender.cpp

 /*
  * Copyright (C) 2006, 2007, 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  *
  * 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,
@@ skipping 17 matching lines @@
 #include "public/platform/WebScheduler.h"
 #include "wtf/StdLibExtras.h"
 #include "wtf/Vector.h"
 
 namespace blink {
 
 namespace {
 
 unsigned s_suspensionCount = 0;
 
-void setSuspended(bool isSuspended) {
-  // Make a copy of the collection. Undeferring loads can cause script to run,
-  // which would mutate ordinaryPages() in the middle of iteration.
-  HeapVector<Member<Page>> pages;
-  copyToVector(Page::ordinaryPages(), pages);
-  for (const auto& page : pages)
-    page->setSuspended(isSuspended);
-}
-
 }  // namespace
 
 ScopedPageSuspender::ScopedPageSuspender() {
   if (++s_suspensionCount > 1)
     return;
 
   setSuspended(true);
   Platform::current()->currentThread()->scheduler()->suspendTimerQueue();
 }
 
 ScopedPageSuspender::~ScopedPageSuspender() {
   if (--s_suspensionCount > 0)
     return;
 
   setSuspended(false);
   Platform::current()->currentThread()->scheduler()->resumeTimerQueue();
 }
 
+void ScopedPageSuspender::setSuspended(bool isSuspended) {
+  // Make a copy of the collection. Undeferring loads can cause script to run,
+  // which would mutate ordinaryPages() in the middle of iteration.
+  HeapVector<Member<Page>> pages;
+  copyToVector(Page::ordinaryPages(), pages);
+
+  for (const auto& page : pages)
+    page->setSuspended(isSuspended);
+}
+
 bool ScopedPageSuspender::isActive() {
   return s_suspensionCount > 0;
 }
 
 }  // namespace blink