Revert of Move FrameHost::m_subframeCount to Page

third_party/WebKit/Source/core/html/HTMLFrameOwnerElement.cpp

 /*
  * Copyright (C) 2006, 2007, 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
@@ skipping 15 matching lines @@
 #include "core/dom/ExceptionCode.h"
 #include "core/events/Event.h"
 #include "core/frame/FrameHost.h"
 #include "core/frame/FrameView.h"
 #include "core/frame/LocalFrame.h"
 #include "core/frame/LocalFrameClient.h"
 #include "core/layout/LayoutPart.h"
 #include "core/layout/api/LayoutPartItem.h"
 #include "core/loader/FrameLoadRequest.h"
 #include "core/loader/FrameLoader.h"
-#include "core/page/Page.h"
 #include "core/plugins/PluginView.h"
 #include "platform/weborigin/SecurityOrigin.h"
 
 namespace blink {
 
 typedef HeapHashMap<Member<FrameViewBase>, Member<FrameView>>
     FrameViewBaseToParentMap;
 static FrameViewBaseToParentMap& widgetNewParentMap() {
   DEFINE_STATIC_LOCAL(FrameViewBaseToParentMap, map,
                       (new FrameViewBaseToParentMap));
@@ skipping 259 matching lines @@
   }
 
   if (!document().getSecurityOrigin()->canDisplay(url)) {
     FrameLoader::reportLocalLoadFailed(parentFrame, url.getString());
     return false;
   }
 
   if (!SubframeLoadingDisabler::canLoadFrame(*this))
     return false;
 
-  if (document().frame()->host()->subframeCount() >= Page::maxNumberOfFrames)
+  if (document().frame()->host()->subframeCount() >=
+      FrameHost::maxNumberOfFrames)
     return false;
 
   FrameLoadRequest frameLoadRequest(&document(), url, "_self",
                                     CheckContentSecurityPolicy);
 
   ReferrerPolicy policy = referrerPolicyAttribute();
   if (policy != ReferrerPolicyDefault)
     frameLoadRequest.resourceRequest().setHTTPReferrer(
         SecurityPolicy::generateReferrer(policy, url,
                                          document().outgoingReferrer()));
 
   return parentFrame->loader().client()->createFrame(frameLoadRequest,
                                                      frameName, this);
 }
 
 DEFINE_TRACE(HTMLFrameOwnerElement) {
   visitor->trace(m_contentFrame);
   visitor->trace(m_widget);
   HTMLElement::trace(visitor);
   FrameOwner::trace(visitor);
 }
 
 }  // namespace blink