Rename ContextDestructionObserver to ContextLifecycleObserver

Source/core/testing/Internals.cpp

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  * Copyright (C) 2013 Apple Inc. All rights reserved.
  *
  * 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.
@@ skipping 177 matching lines @@
     delete s_pagePopupDriver;
     s_pagePopupDriver = 0;
     page->chrome().client()->resetPagePopupDriver();
     if (!page->mainFrame()->editor()->isContinuousSpellCheckingEnabled())
         page->mainFrame()->editor()->toggleContinuousSpellChecking();
     if (page->mainFrame()->editor()->isOverwriteModeEnabled())
         page->mainFrame()->editor()->toggleOverwriteModeEnabled();
 }
 
 Internals::Internals(Document* document)
-    : ContextDestructionObserver(document)
+    : ContextLifecycleObserver(document)
     , m_runtimeFlags(InternalRuntimeFlags::create())
 {
 }
 
 Document* Internals::contextDocument() const
 {
     return toDocument(scriptExecutionContext());
 }
 
 Frame* Internals::frame() const
@@ skipping 1737 matching lines @@
 
     RenderObject* renderer = select->renderer();
     if (!renderer->isMenuList())
         return false;
 
     RenderMenuList* menuList = toRenderMenuList(renderer);
     return menuList->popupIsVisible();
 }
 
 }