Replace scoped_ptr with std::unique_ptr in //media/base.

media/base/serial_runner.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 MEDIA_BASE_SERIAL_RUNNER_H_
 #define MEDIA_BASE_SERIAL_RUNNER_H_
 
 #include <memory>
 #include <queue>
 
 #include "base/callback.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "media/base/media_export.h"
 #include "media/base/pipeline_status.h"
 
 namespace base {
 class SingleThreadTaskRunner;
 }
 
 namespace media {
 
@@ skipping 32 matching lines @@
   //
   // To eliminate an unnecessary posted task, the first function is executed
   // immediately on the caller's stack. It is *strongly advised* to ensure
   // the calling code does no more work after the call to Run().
   //
   // In all cases, |done_cb| is guaranteed to execute on a separate calling
   // stack.
   //
   // Deleting the object will prevent execution of any unstarted bound
   // functions, including |done_cb|.
-  static scoped_ptr<SerialRunner> Run(
-      const Queue& bound_fns, const PipelineStatusCB& done_cb);
+  static std::unique_ptr<SerialRunner> Run(const Queue& bound_fns,
+                                           const PipelineStatusCB& done_cb);
 
  private:
   friend std::default_delete<SerialRunner>;
 
   SerialRunner(const Queue& bound_fns, const PipelineStatusCB& done_cb);
   ~SerialRunner();
 
   void RunNextInSeries(PipelineStatus last_status);
 
   scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
   Queue bound_fns_;
   PipelineStatusCB done_cb_;
 
   // NOTE: Weak pointers must be invalidated before all other member variables.
   base::WeakPtrFactory<SerialRunner> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(SerialRunner);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_BASE_SERIAL_RUNNER_H_