Revert "Remove OwnPtr from Blink."

third_party/WebKit/Source/modules/webaudio/MediaElementAudioSourceNode.h

 /*
  * Copyright (C) 2011, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1.  Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 10 matching lines @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef MediaElementAudioSourceNode_h
 #define MediaElementAudioSourceNode_h
 
 #include "modules/webaudio/AudioSourceNode.h"
 #include "platform/audio/AudioSourceProviderClient.h"
 #include "platform/audio/MultiChannelResampler.h"
+#include "wtf/OwnPtr.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/ThreadingPrimitives.h"
-#include <memory>
 
 namespace blink {
 
 class AbstractAudioContext;
 class HTMLMediaElement;
 
 class MediaElementAudioSourceHandler final : public AudioHandler {
 public:
     static PassRefPtr<MediaElementAudioSourceHandler> create(AudioNode&, HTMLMediaElement&);
     ~MediaElementAudioSourceHandler() override;
@@ skipping 27 matching lines @@
 
     // This Persistent doesn't make a reference cycle. The reference from
     // HTMLMediaElement to AudioSourceProvideClient, which
     // MediaElementAudioSourceNode implements, is weak.
     Persistent<HTMLMediaElement> m_mediaElement;
     Mutex m_processLock;
 
     unsigned m_sourceNumberOfChannels;
     double m_sourceSampleRate;
 
-    std::unique_ptr<MultiChannelResampler> m_multiChannelResampler;
+    OwnPtr<MultiChannelResampler> m_multiChannelResampler;
 
     // |m_passesCurrentSrcCORSAccessCheck| holds the value of
     // context()->getSecurityOrigin() && context()->getSecurityOrigin()->canRequest(mediaElement()->currentSrc()),
     // updated in the ctor and onCurrentSrcChanged() on the main thread and
     // used in passesCORSAccessCheck() on the audio thread,
     // protected by |m_processLock|.
     bool m_passesCurrentSrcCORSAccessCheck;
 
     // Indicates if we need to print a CORS message if the current source has changed and we have no
     // access to it. Must be protected by |m_processLock|.
@@ skipping 20 matching lines @@
     void lock() override;
     void unlock() override;
 
 private:
     MediaElementAudioSourceNode(AbstractAudioContext&, HTMLMediaElement&);
 };
 
 } // namespace blink
 
 #endif // MediaElementAudioSourceNode_h