Revert "Remove OwnPtr from Blink."

third_party/WebKit/Source/platform/audio/AudioDestination.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
@@ skipping 15 matching lines @@
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "platform/audio/AudioDestination.h"
 
 #include "platform/Histogram.h"
 #include "platform/audio/AudioFIFO.h"
 #include "platform/audio/AudioPullFIFO.h"
 #include "public/platform/Platform.h"
 #include "public/platform/WebSecurityOrigin.h"
-#include "wtf/PtrUtil.h"
-#include <memory>
 
 namespace blink {
 
 // Buffer size at which the web audio engine will render.
 const unsigned renderBufferSize = 128;
 
 // Size of the FIFO
 const size_t fifoSize = 8192;
 
 // Factory method: Chromium-implementation
-std::unique_ptr<AudioDestination> AudioDestination::create(AudioIOCallback& callback, const String& inputDeviceId, unsigned numberOfInputChannels, unsigned numberOfOutputChannels, float sampleRate, const PassRefPtr<SecurityOrigin>& securityOrigin)
+PassOwnPtr<AudioDestination> AudioDestination::create(AudioIOCallback& callback, const String& inputDeviceId, unsigned numberOfInputChannels, unsigned numberOfOutputChannels, float sampleRate, const PassRefPtr<SecurityOrigin>& securityOrigin)
 {
-    return wrapUnique(new AudioDestination(callback, inputDeviceId, numberOfInputChannels, numberOfOutputChannels, sampleRate, securityOrigin));
+    return adoptPtr(new AudioDestination(callback, inputDeviceId, numberOfInputChannels, numberOfOutputChannels, sampleRate, securityOrigin));
 }
 
 AudioDestination::AudioDestination(AudioIOCallback& callback, const String& inputDeviceId, unsigned numberOfInputChannels, unsigned numberOfOutputChannels, float sampleRate, const PassRefPtr<SecurityOrigin>& securityOrigin)
     : m_callback(callback)
     , m_numberOfOutputChannels(numberOfOutputChannels)
     , m_inputBus(AudioBus::create(numberOfInputChannels, renderBufferSize))
     , m_renderBus(AudioBus::create(numberOfOutputChannels, renderBufferSize, false))
     , m_sampleRate(sampleRate)
     , m_isPlaying(false)
 {
@@ skipping 23 matching lines @@
 
     if (m_callbackBufferSize <= kSmallBufferSize)
         m_callbackBufferSize = kDefaultCallbackBufferSize;
 #endif
 
     // Quick exit if the requested size is too large.
     ASSERT(m_callbackBufferSize + renderBufferSize <= fifoSize);
     if (m_callbackBufferSize + renderBufferSize > fifoSize)
         return;
 
-    m_audioDevice = wrapUnique(Platform::current()->createAudioDevice(m_callbackBufferSize, numberOfInputChannels, numberOfOutputChannels, sampleRate, this, inputDeviceId, securityOrigin));
+    m_audioDevice = adoptPtr(Platform::current()->createAudioDevice(m_callbackBufferSize, numberOfInputChannels, numberOfOutputChannels, sampleRate, this, inputDeviceId, securityOrigin));
     ASSERT(m_audioDevice);
 
     // Record the sizes if we successfully created an output device.
     hardwareBufferSizeHistogram.sample(recommendedHardwareBufferSize);
     callbackBufferSizeHistogram.sample(m_callbackBufferSize);
 
     // Create a FIFO to handle the possibility of the callback size
     // not being a multiple of the render size. If the FIFO already
     // contains enough data, the data will be provided directly.
     // Otherwise, the FIFO will call the provider enough times to
     // satisfy the request for data.
-    m_fifo = wrapUnique(new AudioPullFIFO(*this, numberOfOutputChannels, fifoSize, renderBufferSize));
+    m_fifo = adoptPtr(new AudioPullFIFO(*this, numberOfOutputChannels, fifoSize, renderBufferSize));
 
     // Input buffering.
-    m_inputFifo = wrapUnique(new AudioFIFO(numberOfInputChannels, fifoSize));
+    m_inputFifo = adoptPtr(new AudioFIFO(numberOfInputChannels, fifoSize));
 
     // If the callback size does not match the render size, then we need to buffer some
     // extra silence for the input. Otherwise, we can over-consume the input FIFO.
     if (m_callbackBufferSize != renderBufferSize) {
         // FIXME: handle multi-channel input and don't hard-code to stereo.
         RefPtr<AudioBus> silence = AudioBus::create(2, renderBufferSize);
         m_inputFifo->push(silence.get());
     }
 }
 
@@ skipping 63 matching lines @@
     if (m_inputFifo->framesInFifo() >= framesToProcess) {
         m_inputFifo->consume(m_inputBus.get(), framesToProcess);
         sourceBus = m_inputBus.get();
     }
 
     m_callback.render(sourceBus, bus, framesToProcess);
 }
 
 } // namespace blink