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

media/base/serial_runner.cc

 // 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.
 
 #include "media/base/serial_runner.h"
 
 #include "base/bind.h"
 #include "base/callback_helpers.h"
 #include "base/location.h"
 #include "base/single_thread_task_runner.h"
@@ skipping 70 matching lines @@
                                       weak_factory_.GetWeakPtr(),
                                       PIPELINE_OK));
     return;
   }
 
   RunNextInSeries(PIPELINE_OK);
 }
 
 SerialRunner::~SerialRunner() {}
 
-scoped_ptr<SerialRunner> SerialRunner::Run(
-    const Queue& bound_fns, const PipelineStatusCB& done_cb) {
-  scoped_ptr<SerialRunner> callback_series(
+std::unique_ptr<SerialRunner> SerialRunner::Run(
+    const Queue& bound_fns,
+    const PipelineStatusCB& done_cb) {
+  std::unique_ptr<SerialRunner> callback_series(
       new SerialRunner(bound_fns, done_cb));
   return callback_series;
 }
 
 void SerialRunner::RunNextInSeries(PipelineStatus last_status) {
   DCHECK(task_runner_->BelongsToCurrentThread());
   DCHECK(!done_cb_.is_null());
 
   if (bound_fns_.empty() || last_status != PIPELINE_OK) {
     base::ResetAndReturn(&done_cb_).Run(last_status);
     return;
   }
 
   BoundPipelineStatusCB bound_fn = bound_fns_.Pop();
   bound_fn.Run(base::Bind(
       &RunOnTaskRunner,
       task_runner_,
       base::Bind(&SerialRunner::RunNextInSeries, weak_factory_.GetWeakPtr())));
 }
 
 }  // namespace media