Convert //extensions/{common,shell} from scoped_ptr to std::unique_ptr

extensions/shell/browser/media_capture_util.cc

 // 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.
 
 #include "extensions/shell/browser/media_capture_util.h"
 
 #include <string>
 #include <utility>
 
 #include "base/callback.h"
@@ skipping 46 matching lines @@
   if (request.video_type == content::MEDIA_DEVICE_VIDEO_CAPTURE) {
     VerifyMediaAccessPermission(request.video_type, extension);
     const MediaStreamDevice* device = GetRequestedDeviceOrDefault(
         MediaCaptureDevices::GetInstance()->GetVideoCaptureDevices(),
         request.requested_video_device_id);
     if (device)
       devices.push_back(*device);
   }
 
   // TODO(jamescook): Should we show a recording icon somewhere? If so, where?
-  scoped_ptr<MediaStreamUI> ui;
+  std::unique_ptr<MediaStreamUI> ui;
   callback.Run(devices, devices.empty() ? content::MEDIA_DEVICE_INVALID_STATE
                                         : content::MEDIA_DEVICE_OK,
                std::move(ui));
 }
 
 void VerifyMediaAccessPermission(content::MediaStreamType type,
                                  const Extension* extension) {
   const PermissionsData* permissions_data = extension->permissions_data();
   if (type == content::MEDIA_DEVICE_AUDIO_CAPTURE) {
     // app_shell has no UI surface to show an error, and on an embedded device
     // it's better to crash than to have a feature not work.
     CHECK(permissions_data->HasAPIPermission(APIPermission::kAudioCapture))
         << "Audio capture request but no audioCapture permission in manifest.";
   } else {
     DCHECK(type == content::MEDIA_DEVICE_VIDEO_CAPTURE);
     CHECK(permissions_data->HasAPIPermission(APIPermission::kVideoCapture))
         << "Video capture request but no videoCapture permission in manifest.";
   }
 }
 
 }  // namespace media_capture_util
 }  // namespace extensions