Remove Frame::host() method

third_party/WebKit/Source/core/loader/FrameLoader.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights
  * reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved.
  * (http://www.torchmobile.com/)
  * Copyright (C) 2008 Alp Toker <alp@atoker.com>
  * Copyright (C) Research In Motion Limited 2009. All rights reserved.
  * Copyright (C) 2011 Kris Jordan <krisjordan@gmail.com>
  * Copyright (C) 2011 Google Inc. All rights reserved.
@@ skipping 742 matching lines @@
     HistoryLoadType historyLoadType,
     ClientRedirectPolicy clientRedirect,
     Document* initiatingDocument) {
   // If we have a state object, we cannot also be a new navigation.
   DCHECK(!stateObject || frameLoadType == FrameLoadTypeBackForward);
 
   // If we have a provisional request for a different document, a fragment
   // scroll should cancel it.
   detachDocumentLoader(m_provisionalDocumentLoader);
 
-  if (!m_frame->host())
+  if (!m_frame->page())
     return;
   saveScrollState();
 
   KURL oldURL = m_frame->document()->url();
   bool hashChange = equalIgnoringFragmentIdentifier(url, oldURL) &&
                     url.fragmentIdentifier() != oldURL.fragmentIdentifier();
   if (hashChange) {
     // If we were in the autoscroll/middleClickAutoscroll mode we want to stop
     // it before following the link to the anchor
     m_frame->eventHandler().stopAutoscroll();
@@ skipping 868 matching lines @@
 
   // For PlzNavigate placeholder DocumentLoaders, don't send failure callbacks
   // for a placeholder simply being replaced with a new DocumentLoader.
   if (hadPlaceholderClientDocumentLoader)
     m_provisionalDocumentLoader->setSentDidFinishLoad();
   m_frame->document()->cancelParsing();
   detachDocumentLoader(m_provisionalDocumentLoader);
 
   // beforeunload fired above, and detaching a DocumentLoader can fire events,
   // which can detach this frame.
-  if (!m_frame->host())
+  if (!m_frame->page())
     return;
 
   m_progressTracker->progressStarted(type);
   // TODO(japhet): This case wants to flag the frame as loading and do nothing
   // else. It'd be nice if it could go through the placeholder DocumentLoader
   // path, too.
   if (navigationPolicy == NavigationPolicyHandledByClientForInitialHistory)
     return;
   DCHECK(navigationPolicy == NavigationPolicyCurrentTab ||
          navigationPolicy == NavigationPolicyHandledByClient);
@@ skipping 239 matching lines @@
       frameLoadRequest.clientRedirect());
 
   loader->setLoadType(loadType);
   loader->setNavigationType(navigationType);
   loader->setReplacesCurrentHistoryItem(loadType ==
                                         FrameLoadTypeReplaceCurrentItem);
   return loader;
 }
 
 }  // namespace blink