Move ExecutionContext's task suspension from FrameLoader to Page

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

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 Apple Inc. All
  * Rights Reserved.
  * Copyright (C) 2008 Torch Mobile Inc. All rights reserved.
  * (http://www.torchmobile.com/)
  *
  * 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.
@@ skipping 242 matching lines @@
   m_validationMessageClient = client;
 }
 
 void Page::setSuspended(bool suspend) {
   if (suspend == m_suspended)
     return;
 
   m_suspended = suspend;
   for (Frame* frame = mainFrame(); frame;
        frame = frame->tree().traverseNext()) {
-    if (frame->isLocalFrame())
-      toLocalFrame(frame)->loader().setDefersLoading(suspend);
+    if (!frame->isLocalFrame())
+      continue;
+    LocalFrame* localFrame = toLocalFrame(frame);
+    if (Document* document = localFrame->document()) {
+      if (suspend)
+        document->suspendScheduledTasks();
+      else
+        document->resumeScheduledTasks();
+    }
+
+    localFrame->loader().setDefersLoading(suspend);
   }
 }
 
 void Page::setPageScaleFactor(float scale) {
   frameHost().visualViewport().setScale(scale);
 }
 
 float Page::pageScaleFactor() const {
   return frameHost().visualViewport().scale();
 }
@@ skipping 260 matching lines @@
     : chromeClient(nullptr),
       contextMenuClient(nullptr),
       editorClient(nullptr),
       spellCheckerClient(nullptr) {}
 
 Page::PageClients::~PageClients() {}
 
 template class CORE_TEMPLATE_EXPORT Supplement<Page>;
 
 }  // namespace blink