Rename ContextDestructionObserver to ContextLifecycleObserver

Source/core/dom/NamedFlowCollection.cpp

 /*
  * Copyright (C) 2012 Adobe Systems Incorporated. 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 24 matching lines @@
 #include "core/dom/Document.h"
 #include "core/dom/NamedFlow.h"
 #include "core/inspector/InspectorInstrumentation.h"
 
 #include <wtf/text/StringHash.h>
 #include <wtf/text/WTFString.h>
 
 namespace WebCore {
 
 NamedFlowCollection::NamedFlowCollection(Document* document)
-    : ContextDestructionObserver(document)
+    : ContextLifecycleObserver(document)
 {
     ASSERT(RuntimeEnabledFeatures::cssRegionsEnabled());
 }
 
 Vector<RefPtr<NamedFlow> > NamedFlowCollection::namedFlows()
 {
     Vector<RefPtr<NamedFlow> > namedFlows;
 
     for (NamedFlowSet::iterator it = m_namedFlows.begin(); it != m_namedFlows.end(); ++it) {
         if ((*it)->flowState() == NamedFlow::FlowStateNull)
@@ skipping 41 matching lines @@
     ASSERT(namedFlow->flowState() == NamedFlow::FlowStateNull);
     ASSERT(m_namedFlows.contains(namedFlow));
 
     InspectorInstrumentation::willRemoveNamedFlow(document(), namedFlow);
 
     m_namedFlows.remove(namedFlow);
 }
 
 Document* NamedFlowCollection::document() const
 {
-    ScriptExecutionContext* context = ContextDestructionObserver::scriptExecutionContext();
+    ScriptExecutionContext* context = ContextLifecycleObserver::scriptExecutionContext();
     return toDocument(context);
 }
 
 PassRefPtr<DOMNamedFlowCollection> NamedFlowCollection::createCSSOMSnapshot()
 {
     Vector<NamedFlow*> createdFlows;
     for (NamedFlowSet::iterator it = m_namedFlows.begin(); it != m_namedFlows.end(); ++it)
         if ((*it)->flowState() == NamedFlow::FlowStateCreated)
             createdFlows.append(*it);
     return DOMNamedFlowCollection::create(createdFlows);
 }
 
 // The HashFunctions object used by the HashSet to compare between NamedFlows.
 // It is safe to set safeToCompareToEmptyOrDeleted because the HashSet will never contain null pointers or deleted values.
 struct NamedFlowCollection::NamedFlowHashFunctions {
     static unsigned hash(NamedFlow* key) { return DefaultHash<String>::Hash::hash(key->name()); }
     static bool equal(NamedFlow* a, NamedFlow* b) { return a->name() == b->name(); }
     static const bool safeToCompareToEmptyOrDeleted = true;
 };
 
 // The HashTranslator is used to lookup a NamedFlow in the set using a name.
 struct NamedFlowCollection::NamedFlowHashTranslator {
     static unsigned hash(const String& key) { return DefaultHash<String>::Hash::hash(key); }
     static bool equal(NamedFlow* a, const String& b) { return a->name() == b; }
 };
 
 } // namespace WebCore