Update scoped_ptr references to be unique_ptr in src/base comments.

base/message_loop/message_pump_glib.h

 // Copyright (c) 2012 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_MESSAGE_LOOP_MESSAGE_PUMP_GLIB_H_
 #define BASE_MESSAGE_LOOP_MESSAGE_PUMP_GLIB_H_
 
 #include <memory>
 
 #include "base/base_export.h"
@@ skipping 51 matching lines @@
   // The work source.  It is shared by all calls to Run and destroyed when
   // the message pump is destroyed.
   GSource* work_source_;
 
   // We use a wakeup pipe to make sure we'll get out of the glib polling phase
   // when another thread has scheduled us to do some work.  There is a glib
   // mechanism g_main_context_wakeup, but this won't guarantee that our event's
   // Dispatch() will be called.
   int wakeup_pipe_read_;
   int wakeup_pipe_write_;
-  // Use a scoped_ptr to avoid needing the definition of GPollFD in the header.
+  // Use a unique_ptr to avoid needing the definition of GPollFD in the header.
   std::unique_ptr<GPollFD> wakeup_gpollfd_;
 
   DISALLOW_COPY_AND_ASSIGN(MessagePumpGlib);
 };
 
 }  // namespace base
 
 #endif  // BASE_MESSAGE_LOOP_MESSAGE_PUMP_GLIB_H_