Revert "Remove OwnPtr from Blink."

third_party/WebKit/Source/modules/imagecapture/ImageCapture.h

 // Copyright 2016 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 ImageCapture_h
 #define ImageCapture_h
 
 #include "bindings/core/v8/ActiveScriptWrappable.h"
 #include "bindings/core/v8/ScriptPromise.h"
 #include "core/dom/ContextLifecycleObserver.h"
 #include "core/events/EventTarget.h"
 #include "media/mojo/interfaces/image_capture.mojom-blink.h"
 #include "modules/EventTargetModules.h"
 #include "modules/ModulesExport.h"
 #include "platform/AsyncMethodRunner.h"
-#include <memory>
 
 namespace blink {
 
 class ExceptionState;
 class MediaStreamTrack;
 class PhotoSettings;
 class WebImageCaptureFrameGrabber;
 
 // TODO(mcasas): Consideradding a LayoutTest checking that this class is not
 // garbage collected while it has event listeners.
@@ skipping 31 matching lines @@
 
 private:
     ImageCapture(ExecutionContext*, MediaStreamTrack*);
 
     void onCapabilities(ScriptPromiseResolver*, media::mojom::blink::PhotoCapabilitiesPtr);
     void onSetOptions(ScriptPromiseResolver*, bool);
     void onTakePhoto(ScriptPromiseResolver*, const String& mimeType, mojo::WTFArray<uint8_t> data);
     void onServiceConnectionError();
 
     Member<MediaStreamTrack> m_streamTrack;
-    std::unique_ptr<WebImageCaptureFrameGrabber> m_frameGrabber;
+    OwnPtr<WebImageCaptureFrameGrabber> m_frameGrabber;
     media::mojom::blink::ImageCapturePtr m_service;
 
     HeapHashSet<Member<ScriptPromiseResolver>> m_serviceRequests;
 };
 
 } // namespace blink
 
 #endif // ImageCapture_h