Revert "Remove OwnPtr from Blink."

third_party/WebKit/Source/modules/webaudio/BiquadProcessor.cpp

 /*
  * 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
  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
  * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+#include "modules/webaudio/BiquadProcessor.h"
 #include "modules/webaudio/BiquadDSPKernel.h"
-#include "modules/webaudio/BiquadProcessor.h"
-#include "wtf/PtrUtil.h"
-#include <memory>
 
 namespace blink {
 
 BiquadProcessor::BiquadProcessor(float sampleRate, size_t numberOfChannels, AudioParamHandler& frequency, AudioParamHandler& q, AudioParamHandler& gain, AudioParamHandler& detune)
     : AudioDSPKernelProcessor(sampleRate, numberOfChannels)
     , m_type(LowPass)
     , m_parameter1(frequency)
     , m_parameter2(q)
     , m_parameter3(gain)
     , m_parameter4(detune)
     , m_filterCoefficientsDirty(true)
     , m_hasSampleAccurateValues(false)
 {
 }
 
 BiquadProcessor::~BiquadProcessor()
 {
     if (isInitialized())
         uninitialize();
 }
 
-std::unique_ptr<AudioDSPKernel> BiquadProcessor::createKernel()
+PassOwnPtr<AudioDSPKernel> BiquadProcessor::createKernel()
 {
-    return wrapUnique(new BiquadDSPKernel(this));
+    return adoptPtr(new BiquadDSPKernel(this));
 }
 
 void BiquadProcessor::checkForDirtyCoefficients()
 {
     // Deal with smoothing / de-zippering. Start out assuming filter parameters are not changing.
 
     // The BiquadDSPKernel objects rely on this value to see if they need to re-compute their internal filter coefficients.
     m_filterCoefficientsDirty = false;
     m_hasSampleAccurateValues = false;
 
@@ skipping 42 matching lines @@
         reset(); // The filter state must be reset only if the type has changed.
     }
 }
 
 void BiquadProcessor::getFrequencyResponse(int nFrequencies, const float* frequencyHz, float* magResponse, float* phaseResponse)
 {
     // Compute the frequency response on a separate temporary kernel
     // to avoid interfering with the processing running in the audio
     // thread on the main kernels.
 
-    std::unique_ptr<BiquadDSPKernel> responseKernel = wrapUnique(new BiquadDSPKernel(this));
+    OwnPtr<BiquadDSPKernel> responseKernel = adoptPtr(new BiquadDSPKernel(this));
     responseKernel->getFrequencyResponse(nFrequencies, frequencyHz, magResponse, phaseResponse);
 }
 
 } // namespace blink