Remove LifecycleNotifier<>::m_context.

Source/core/frame/LocalDOMWindow.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  *
  * 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
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 355 matching lines @@
     Settings* settings = firstFrame.settings();
     return settings && settings->javaScriptCanOpenWindowsAutomatically();
 }
 
 bool LocalDOMWindow::allowPopUp()
 {
     return frame() && allowPopUp(*frame());
 }
 
 LocalDOMWindow::LocalDOMWindow(LocalFrame& frame)
-    : DOMWindowLifecycleNotifier(this)
-    , m_frameObserver(WindowFrameObserver::create(this, frame))
+    : m_frameObserver(WindowFrameObserver::create(this, frame))
     , m_shouldPrintWhenFinishedLoading(false)
 #if ENABLE(ASSERT)
     , m_hasBeenReset(false)
 #endif
 {
 }
 
 void LocalDOMWindow::clearDocument()
 {
     if (!m_document)
@@ skipping 1394 matching lines @@
     return m_frameObserver->frame();
 }
 
 v8::Handle<v8::Object> LocalDOMWindow::wrap(v8::Handle<v8::Object> creationContext, v8::Isolate* isolate)
 {
     ASSERT_NOT_REACHED(); // LocalDOMWindow has [Custom=ToV8].
     return v8::Handle<v8::Object>();
 }
 
 } // namespace blink