Revert "Remove OwnPtr from Blink."

third_party/WebKit/Source/modules/webaudio/AudioBasicProcessorHandler.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 AudioBasicProcessorHandler_h
 #define AudioBasicProcessorHandler_h
 
 #include "modules/ModulesExport.h"
 #include "modules/webaudio/AudioNode.h"
 #include "wtf/Forward.h"
-#include <memory>
 
 namespace blink {
 
 class AudioNodeInput;
 class AudioProcessor;
 
 // AudioBasicProcessorHandler is an AudioHandler with one input and one output
 // where the input and output have the same number of channels.
 class MODULES_EXPORT AudioBasicProcessorHandler : public AudioHandler {
 public:
-    static PassRefPtr<AudioBasicProcessorHandler> create(NodeType, AudioNode&, float sampleRate, std::unique_ptr<AudioProcessor>);
+    static PassRefPtr<AudioBasicProcessorHandler> create(NodeType, AudioNode&, float sampleRate, PassOwnPtr<AudioProcessor>);
     ~AudioBasicProcessorHandler() override;
 
     // AudioHandler
     void process(size_t framesToProcess) final;
     void pullInputs(size_t framesToProcess) final;
     void initialize() final;
     void uninitialize() final;
 
     // Called in the main thread when the number of channels for the input may have changed.
     void checkNumberOfChannelsForInput(AudioNodeInput*) final;
 
     // Returns the number of channels for both the input and the output.
     unsigned numberOfChannels();
     AudioProcessor* processor() { return m_processor.get(); }
 
 private:
-    AudioBasicProcessorHandler(NodeType, AudioNode&, float sampleRate, std::unique_ptr<AudioProcessor>);
+    AudioBasicProcessorHandler(NodeType, AudioNode&, float sampleRate, PassOwnPtr<AudioProcessor>);
     double tailTime() const final;
     double latencyTime() const final;
 
-    std::unique_ptr<AudioProcessor> m_processor;
+    OwnPtr<AudioProcessor> m_processor;
 };
 
 } // namespace blink
 
 #endif // AudioBasicProcessorHandler_h