ImageCapture: ScopedResultCallback

media/capture/video/fake_video_capture_device.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.
 
 // Implementation of a fake VideoCaptureDevice class. Used for testing other
 // video capture classes when no real hardware is available.
 
 #ifndef MEDIA_VIDEO_CAPTURE_FAKE_VIDEO_CAPTURE_DEVICE_H_
 #define MEDIA_VIDEO_CAPTURE_FAKE_VIDEO_CAPTURE_DEVICE_H_
 
@@ skipping 19 matching lines @@
   };
 
   FakeVideoCaptureDevice(BufferOwnership buffer_ownership,
                          float fake_capture_rate);
   ~FakeVideoCaptureDevice() override;
 
   // VideoCaptureDevice implementation.
   void AllocateAndStart(const VideoCaptureParams& params,
                         std::unique_ptr<Client> client) override;
   void StopAndDeAllocate() override;
-  bool TakePhoto(const TakePhotoCallback& photo_callback) override;
+  void TakePhoto(ScopedCallback<TakePhotoCallback> callback) override;
 
  private:
   void CaptureUsingOwnBuffers(base::TimeTicks expected_execution_time);
   void CaptureUsingClientBuffers(base::TimeTicks expected_execution_time);
   void BeepAndScheduleNextCapture(
       base::TimeTicks expected_execution_time,
       const base::Callback<void(base::TimeTicks)>& next_capture);
 
   // |thread_checker_| is used to check that all methods are called in the
   // correct thread that owns the object.
@@ skipping 15 matching lines @@
   // FakeVideoCaptureDevice post tasks to itself for frame construction and
   // needs to deal with asynchronous StopAndDeallocate().
   base::WeakPtrFactory<FakeVideoCaptureDevice> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(FakeVideoCaptureDevice);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_VIDEO_CAPTURE_FAKE_VIDEO_CAPTURE_DEVICE_H_