Remove support for NPObjects.

third_party/WebKit/Source/core/frame/LocalFrame.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 371 matching lines @@
 
 void LocalFrame::willDetachFrameHost()
 {
     LocalFrameLifecycleNotifier::notifyWillDetachFrameHost();
 
     // FIXME: Page should take care of updating focus/scrolling instead of Frame.
     // FIXME: It's unclear as to why this is called more than once, but it is,
     // so page() could be null.
     if (page() && page()->focusController().focusedFrame() == this)
         page()->focusController().setFocusedFrame(nullptr);
-    script().clearScriptObjects();
 
     if (page() && page()->scrollingCoordinator() && m_view)
         page()->scrollingCoordinator()->willDestroyScrollableArea(m_view.get());
 }
 
 void LocalFrame::setDOMWindow(PassRefPtrWillBeRawPtr<LocalDOMWindow> domWindow)
 {
     // Oilpan: setDOMWindow() cannot be used when finalizing. Which
     // is acceptable as its actions are either not needed or handled
     // by other means --
@@ skipping 486 matching lines @@
 {
     m_frame->disableNavigation();
 }
 
 FrameNavigationDisabler::~FrameNavigationDisabler()
 {
     m_frame->enableNavigation();
 }
 
 } // namespace blink