Remove OwnPtr from Blink.

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

Index: third_party/WebKit/Source/modules/imagecapture/ImageCapture.h
diff --git a/third_party/WebKit/Source/modules/imagecapture/ImageCapture.h b/third_party/WebKit/Source/modules/imagecapture/ImageCapture.h
index beeb30a59a6a90a3e67541ab8c464e2ea8c320b1..d1a1ea55755bc1e6b3ced3a5cfb7aa22fbab24ca 100644
--- a/third_party/WebKit/Source/modules/imagecapture/ImageCapture.h
+++ b/third_party/WebKit/Source/modules/imagecapture/ImageCapture.h
@@ -13,6 +13,7 @@
 #include "modules/EventTargetModules.h"
 #include "modules/ModulesExport.h"
 #include "platform/AsyncMethodRunner.h"
+#include <memory>
 
 namespace blink {
 
@@ -60,7 +61,7 @@ private:
     void onServiceConnectionError();
 
     Member<MediaStreamTrack> m_streamTrack;
-    OwnPtr<WebImageCaptureFrameGrabber> m_frameGrabber;
+    std::unique_ptr<WebImageCaptureFrameGrabber> m_frameGrabber;
     media::mojom::blink::ImageCapturePtr m_service;
 
     HeapHashSet<Member<ScriptPromiseResolver>> m_serviceRequests;