Revert "Remove OwnPtr from Blink."

third_party/WebKit/Source/platform/audio/AudioDestination.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
@@ skipping 19 matching lines @@
 #define AudioDestination_h
 
 #include "platform/audio/AudioBus.h"
 #include "platform/audio/AudioIOCallback.h"
 #include "platform/audio/AudioSourceProvider.h"
 #include "public/platform/WebAudioDevice.h"
 #include "public/platform/WebVector.h"
 #include "wtf/Allocator.h"
 #include "wtf/Noncopyable.h"
 #include "wtf/text/WTFString.h"
-#include <memory>
 
 namespace blink {
 
 class AudioFIFO;
 class AudioPullFIFO;
 class SecurityOrigin;
 
 // An AudioDestination using Chromium's audio system
 
 class PLATFORM_EXPORT AudioDestination : public WebAudioDevice::RenderCallback, public AudioSourceProvider {
     USING_FAST_MALLOC(AudioDestination);
     WTF_MAKE_NONCOPYABLE(AudioDestination);
 public:
     AudioDestination(AudioIOCallback&, const String& inputDeviceId, unsigned numberOfInputChannels, unsigned numberOfOutputChannels, float sampleRate, const PassRefPtr<SecurityOrigin>&);
     ~AudioDestination() override;
 
     // Pass in (numberOfInputChannels > 0) if live/local audio input is desired.
     // Port-specific device identification information for live/local input streams can be passed in the inputDeviceId.
-    static std::unique_ptr<AudioDestination> create(AudioIOCallback&, const String& inputDeviceId, unsigned numberOfInputChannels, unsigned numberOfOutputChannels, float sampleRate, const PassRefPtr<SecurityOrigin>&);
+    static PassOwnPtr<AudioDestination> create(AudioIOCallback&, const String& inputDeviceId, unsigned numberOfInputChannels, unsigned numberOfOutputChannels, float sampleRate, const PassRefPtr<SecurityOrigin>&);
 
     virtual void start();
     virtual void stop();
     bool isPlaying() { return m_isPlaying; }
 
     float sampleRate() const { return m_sampleRate; }
 
     // WebAudioDevice::RenderCallback
     void render(const WebVector<float*>& sourceData, const WebVector<float*>& audioData, size_t numberOfFrames) override;
 
@@ skipping 10 matching lines @@
     // or if maxChannelCount() equals 0, then numberOfOutputChannels must be 2.
     static unsigned long maxChannelCount();
 
 private:
     AudioIOCallback& m_callback;
     unsigned m_numberOfOutputChannels;
     RefPtr<AudioBus> m_inputBus;
     RefPtr<AudioBus> m_renderBus;
     float m_sampleRate;
     bool m_isPlaying;
-    std::unique_ptr<WebAudioDevice> m_audioDevice;
+    OwnPtr<WebAudioDevice> m_audioDevice;
     size_t m_callbackBufferSize;
 
-    std::unique_ptr<AudioFIFO> m_inputFifo;
-    std::unique_ptr<AudioPullFIFO> m_fifo;
+    OwnPtr<AudioFIFO> m_inputFifo;
+    OwnPtr<AudioPullFIFO> m_fifo;
 };
 
 } // namespace blink
 
 #endif // AudioDestination_h