Revert of [blink] Unique pointers in Platform.h

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

 // 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.
 
 #include "modules/imagecapture/ImageCapture.h"
 
 #include "bindings/core/v8/CallbackPromiseAdapter.h"
 #include "bindings/core/v8/ScriptPromiseResolver.h"
 #include "core/dom/DOMException.h"
 #include "core/dom/ExceptionCode.h"
@@ skipping 207 matching lines @@
   ScriptPromise promise = resolver->Promise();
 
   if (TrackIsInactive(*stream_track_)) {
     resolver->Reject(DOMException::Create(
         kInvalidStateError, "The associated Track is in an invalid state."));
     return promise;
   }
 
   // Create |m_frameGrabber| the first time.
   if (!frame_grabber_) {
-    frame_grabber_ = Platform::Current()->CreateImageCaptureFrameGrabber();
+    frame_grabber_ =
+        WTF::WrapUnique(Platform::Current()->CreateImageCaptureFrameGrabber());
   }
 
   if (!frame_grabber_) {
     resolver->Reject(DOMException::Create(
         kUnknownError, "Couldn't create platform resources"));
     return promise;
   }
 
   // The platform does not know about MediaStreamTrack, so we wrap it up.
   WebMediaStreamTrack track(stream_track_->Component());
@@ skipping 421 matching lines @@
   visitor->Trace(stream_track_);
   visitor->Trace(capabilities_);
   visitor->Trace(settings_);
   visitor->Trace(current_constraints_);
   visitor->Trace(service_requests_);
   EventTargetWithInlineData::Trace(visitor);
   ContextLifecycleObserver::Trace(visitor);
 }
 
 }  // namespace blink