Rename ContextDestructionObserver to ContextLifecycleObserver

Source/core/dom/ContextDestructionObserver.h

Index: Source/core/dom/ContextDestructionObserver.h
diff --git a/Source/core/dom/ContextDestructionObserver.h b/Source/core/dom/ContextDestructionObserver.h
deleted file mode 100644
index 1254a0ad8cd5fc7dc46897344a81f288943028b7..0000000000000000000000000000000000000000
--- a/Source/core/dom/ContextDestructionObserver.h
+++ /dev/null
@@ -1,56 +0,0 @@
-/*
- * Copyright (C) 2008 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.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
- *
- */
-
-#ifndef ContextDestructionObserver_h
-#define ContextDestructionObserver_h
-
-namespace WebCore {
-
-class ScriptExecutionContext;
-
-class ContextDestructionObserver {
-public:
-    enum Type {
-        ActiveDOMObjectType,
-        DocumentLifecycleObserverType,
-        GenericType
-    };
-
-    explicit ContextDestructionObserver(ScriptExecutionContext*, Type = GenericType);
-    virtual void contextDestroyed();
-
-    ScriptExecutionContext* scriptExecutionContext() const { return m_scriptExecutionContext; }
-
-protected:
-    virtual ~ContextDestructionObserver();
-    void observeContext(ScriptExecutionContext*, Type);
-
-    ScriptExecutionContext* m_scriptExecutionContext;
-};
-
-} // namespace WebCore
-
-#endif // ContextDestructionObserver_h