Move some files in base to base/memory.

base/callback_old.h

 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef BASE_CALLBACK_OLD_H_
 #define BASE_CALLBACK_OLD_H_
 #pragma once
 
+#include "base/memory/raw_scoped_refptr_mismatch_checker.h"
 #include "base/tuple.h"
-#include "base/raw_scoped_refptr_mismatch_checker.h"
 
 // Callback --------------------------------------------------------------------
 //
 // A Callback is like a Task but with unbound parameters. It is basically an
 // object-oriented function pointer.
 //
 // Callbacks are designed to work with Tuples.  A set of helper functions and
 // classes is provided to hide the Tuple details from the consumer.  Client
 // code will generally work with the CallbackRunner base class, which merely
 // provides a Run method and is returned by the New* functions. This allows
@@ skipping 224 matching lines @@
 };
 
 template <class T, typename ReturnValue>
 typename CallbackWithReturnValue<ReturnValue>::Type*
 NewCallbackWithReturnValue(T* object, ReturnValue (T::*method)()) {
   return new CallbackWithReturnValueImpl<T, ReturnValue (T::*)(), ReturnValue>(
       object, method);
 }
 
 #endif  // BASE_CALLBACK_OLD_H_