Revert "Remove OwnPtr from Blink."

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

 /*
  * Copyright (C) 2010, 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 ConvolverNode_h
 #define ConvolverNode_h
 
 #include "base/gtest_prod_util.h"
 #include "modules/ModulesExport.h"
 #include "modules/webaudio/AudioNode.h"
+#include "wtf/OwnPtr.h"
 #include "wtf/RefPtr.h"
 #include "wtf/ThreadingPrimitives.h"
-#include <memory>
 
 namespace blink {
 
 class AudioBuffer;
 class ExceptionState;
 class Reverb;
 
 class MODULES_EXPORT ConvolverHandler final : public AudioHandler {
 public:
     static PassRefPtr<ConvolverHandler> create(AudioNode&, float sampleRate);
     ~ConvolverHandler() override;
 
     // AudioHandler
     void process(size_t framesToProcess) override;
 
     // Impulse responses
     void setBuffer(AudioBuffer*, ExceptionState&);
     AudioBuffer* buffer();
 
     bool normalize() const { return m_normalize; }
     void setNormalize(bool normalize) { m_normalize = normalize; }
 
 private:
     ConvolverHandler(AudioNode&, float sampleRate);
     double tailTime() const override;
     double latencyTime() const override;
 
-    std::unique_ptr<Reverb> m_reverb;
+    OwnPtr<Reverb> m_reverb;
     // This Persistent doesn't make a reference cycle including the owner
     // ConvolverNode.
     Persistent<AudioBuffer> m_buffer;
 
     // This synchronizes dynamic changes to the convolution impulse response with process().
     mutable Mutex m_processLock;
 
     // Normalize the impulse response or not. Must default to true.
     bool m_normalize;
 
@@ skipping 13 matching lines @@
 private:
     ConvolverNode(AbstractAudioContext&);
     ConvolverHandler& convolverHandler() const;
 
     FRIEND_TEST_ALL_PREFIXES(ConvolverNodeTest, ReverbLifetime);
 };
 
 } // namespace blink
 
 #endif // ConvolverNode_h