Use std::default_delete as the default deleter for scoped_ptr.

ipc/mojo/ipc_message_pipe_reader.h

 // Copyright 2014 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 IPC_IPC_MESSAGE_PIPE_READER_H_
 #define IPC_IPC_MESSAGE_PIPE_READER_H_
 
+#include <memory>
 #include <vector>
 
 #include "base/atomicops.h"
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/threading/thread_checker.h"
 #include "ipc/ipc_message.h"
 #include "mojo/public/c/environment/async_waiter.h"
 #include "mojo/public/cpp/system/core.h"
 
@@ skipping 24 matching lines @@
    public:
     virtual void OnMessageReceived(Message& message) = 0;
     virtual void OnPipeClosed(MessagePipeReader* reader) = 0;
     virtual void OnPipeError(MessagePipeReader* reader) = 0;
   };
 
   // Delay the object deletion using the current message loop.
   // This is intended to used by MessagePipeReader owners.
   class DelayedDeleter {
    public:
-    typedef base::DefaultDeleter<MessagePipeReader> DefaultType;
+    typedef std::default_delete<MessagePipeReader> DefaultType;
 
     static void DeleteNow(MessagePipeReader* ptr) { delete ptr; }
 
     DelayedDeleter() {}
     explicit DelayedDeleter(const DefaultType&) {}
     DelayedDeleter& operator=(const DefaultType&) { return *this; }
 
     void operator()(MessagePipeReader* ptr) const;
   };
 
@@ skipping 54 matching lines @@
   base::subtle::Atomic32 pending_send_error_;
   base::ThreadChecker thread_checker_;
 
   DISALLOW_COPY_AND_ASSIGN(MessagePipeReader);
 };
 
 }  // namespace internal
 }  // namespace IPC
 
 #endif  // IPC_IPC_MESSAGE_PIPE_READER_H_