Revert "Remove OwnPtr from Blink."

third_party/WebKit/Source/modules/mediacapturefromelement/CanvasCaptureMediaStreamTrack.cpp

 // Copyright 2015 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/mediacapturefromelement/CanvasCaptureMediaStreamTrack.h"
 
 #include "core/html/HTMLCanvasElement.h"
 #include "modules/mediacapturefromelement/AutoCanvasDrawListener.h"
 #include "modules/mediacapturefromelement/OnRequestCanvasDrawListener.h"
 #include "modules/mediacapturefromelement/TimedCanvasDrawListener.h"
 #include "platform/mediastream/MediaStreamCenter.h"
-#include <memory>
 
 namespace blink {
 
-CanvasCaptureMediaStreamTrack* CanvasCaptureMediaStreamTrack::create(MediaStreamComponent* component, HTMLCanvasElement* element, std::unique_ptr<WebCanvasCaptureHandler> handler)
+CanvasCaptureMediaStreamTrack* CanvasCaptureMediaStreamTrack::create(MediaStreamComponent* component, HTMLCanvasElement* element, PassOwnPtr<WebCanvasCaptureHandler> handler)
 {
     return new CanvasCaptureMediaStreamTrack(component, element, std::move(handler));
 }
 
-CanvasCaptureMediaStreamTrack* CanvasCaptureMediaStreamTrack::create(MediaStreamComponent* component, HTMLCanvasElement* element, std::unique_ptr<WebCanvasCaptureHandler> handler, double frameRate)
+CanvasCaptureMediaStreamTrack* CanvasCaptureMediaStreamTrack::create(MediaStreamComponent* component, HTMLCanvasElement* element, PassOwnPtr<WebCanvasCaptureHandler> handler, double frameRate)
 {
     return new CanvasCaptureMediaStreamTrack(component, element, std::move(handler), frameRate);
 }
 
 HTMLCanvasElement* CanvasCaptureMediaStreamTrack::canvas() const
 {
     return m_canvasElement.get();
 }
 
 void CanvasCaptureMediaStreamTrack::requestFrame()
@@ skipping 18 matching lines @@
 
 CanvasCaptureMediaStreamTrack::CanvasCaptureMediaStreamTrack(const CanvasCaptureMediaStreamTrack& track, MediaStreamComponent* component)
     :MediaStreamTrack(track.m_canvasElement->getExecutionContext(), component)
     , m_canvasElement(track.m_canvasElement)
     , m_drawListener(track.m_drawListener)
 {
     suspendIfNeeded();
     m_canvasElement->addListener(m_drawListener.get());
 }
 
-CanvasCaptureMediaStreamTrack::CanvasCaptureMediaStreamTrack(MediaStreamComponent* component, HTMLCanvasElement* element, std::unique_ptr<WebCanvasCaptureHandler> handler)
+CanvasCaptureMediaStreamTrack::CanvasCaptureMediaStreamTrack(MediaStreamComponent* component, HTMLCanvasElement* element, PassOwnPtr<WebCanvasCaptureHandler> handler)
     : MediaStreamTrack(element->getExecutionContext(), component)
     , m_canvasElement(element)
 {
     suspendIfNeeded();
     m_drawListener = AutoCanvasDrawListener::create(std::move(handler));
     m_canvasElement->addListener(m_drawListener.get());
 }
 
-CanvasCaptureMediaStreamTrack::CanvasCaptureMediaStreamTrack(MediaStreamComponent* component, HTMLCanvasElement* element, std::unique_ptr<WebCanvasCaptureHandler> handler, double frameRate)
+CanvasCaptureMediaStreamTrack::CanvasCaptureMediaStreamTrack(MediaStreamComponent* component, HTMLCanvasElement* element, PassOwnPtr<WebCanvasCaptureHandler> handler, double frameRate)
     : MediaStreamTrack(element->getExecutionContext(), component)
     , m_canvasElement(element)
 {
     suspendIfNeeded();
     if (frameRate == 0) {
         m_drawListener = OnRequestCanvasDrawListener::create(std::move(handler));
     } else {
         m_drawListener = TimedCanvasDrawListener::create(std::move(handler), frameRate);
     }
     m_canvasElement->addListener(m_drawListener.get());
 }
 
 } // namespace blink