Remove left-over PageCache stuff

Source/core/loader/HistoryController.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2009 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/)
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
@@ skipping 89 matching lines @@
     ASSERT(m_currentItem);
     
     // FIXME: As the ASSERT attests, it seems we should always have a currentItem here.
     // One counterexample is <rdar://problem/4917290>
     // For now, to cover this issue in release builds, there is no technical harm to returning
     // early and from a user standpoint - as in the above radar - the previous page load failed 
     // so there *is* no scroll or view state to restore!
     if (!m_currentItem)
         return;
 
-    // FIXME: There is some scrolling related work that needs to happen whenever a page goes into the
-    // page cache and similar work that needs to occur when it comes out. This is where we do the work
-    // that needs to happen when we exit, and the work that needs to happen when we enter is in
-    // Document::setIsInPageCache(bool). It would be nice if there was more symmetry in these spots.
-    // https://bugs.webkit.org/show_bug.cgi?id=98698
     if (FrameView* view = m_frame->view()) {
         Page* page = m_frame->page();
         if (page && page->mainFrame() == m_frame) {
             if (ScrollingCoordinator* scrollingCoordinator = page->scrollingCoordinator())
                 scrollingCoordinator->frameViewRootLayerDidChange(view);
         }
 
         if (!view->wasScrolledByUser()) {
             if (page && page->mainFrame() == m_frame && m_currentItem->pageScaleFactor())
                 page->setPageScaleFactor(m_currentItem->pageScaleFactor(), m_currentItem->scrollPoint());
@@ skipping 657 matching lines @@
         m_currentItem->setURLString(urlString);
     m_currentItem->setTitle(title);
     m_currentItem->setStateObject(stateObject);
     m_currentItem->setFormData(0);
     m_currentItem->setFormContentType(String());
 
     ASSERT(m_frame->page());
 }
 
 } // namespace WebCore