Rename attach and detach to createRenderTree/destroyRenderTree

Source/core/page/Frame.cpp

 /*
  * Copyright (C) 1998, 1999 Torben Weis <weis@kde.org>
  *                     1999 Lars Knoll <knoll@kde.org>
  *                     1999 Antti Koivisto <koivisto@kde.org>
  *                     2000 Simon Hausmann <hausmann@kde.org>
  *                     2000 Stefan Schimanski <1Stein@gmx.de>
  *                     2001 George Staikos <staikos@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2005 Alexey Proskuryakov <ap@nypop.com>
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
@@ skipping 163 matching lines @@
     m_destructionObservers.add(observer);
 }
 
 void Frame::removeDestructionObserver(FrameDestructionObserver* observer)
 {
     m_destructionObservers.remove(observer);
 }
 
 void Frame::setView(PassRefPtr<FrameView> view)
 {
-    // We the custom scroll bars as early as possible to prevent m_doc->detach()
+    // We the custom scroll bars as early as possible to prevent m_doc->destroyRenderTree()
     // from messing with the view such that its scroll bars won't be torn down.
     // FIXME: We should revisit this.
     if (m_view)
         m_view->prepareForDetach();
 
     // Prepare for destruction now, so any unload event handlers get run and the DOMWindow is
     // notified. If we wait until the view is destroyed, then things won't be hooked up enough for
     // these calls to work.
     if (!view && document() && document()->attached()) {
         // FIXME: We don't call willRemove here. Why is that OK?
@@ skipping 516 matching lines @@
     if (!m_page)
         return 0;
 
     double ratio = m_page->deviceScaleFactor();
     if (RuntimeEnabledFeatures::devicePixelRatioIncludesZoomEnabled())
         ratio *= pageZoomFactor();
     return ratio;
 }
 
 } // namespace WebCore