[DO NOT SUBMIT] AudioWorklet FS2a: AudioWorkletThread on OfflineAudioContext

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

 /*
  * Copyright (C) 2011, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
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  *    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
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  *
  * 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
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 #ifndef OfflineAudioDestinationNode_h
 #define OfflineAudioDestinationNode_h
 
 #include "modules/webaudio/AudioBuffer.h"
 #include "modules/webaudio/AudioDestinationNode.h"
+#include "modules/webaudio/AudioWorkletThread.h"
 #include "modules/webaudio/OfflineAudioContext.h"
-#include "public/platform/WebThread.h"
+// #include "public/platform/WebThread.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefPtr.h"
 
 namespace blink {
 
 class AbstractAudioContext;
 class AudioBus;
 class OfflineAudioContext;
 
 class OfflineAudioDestinationHandler final : public AudioDestinationHandler {
 public:
     static PassRefPtr<OfflineAudioDestinationHandler> create(AudioNode&, AudioBuffer* renderTarget);
     ~OfflineAudioDestinationHandler() override;
 
     // AudioHandler
     void dispose() override;
     void initialize() override;
     void uninitialize() override;
 
     OfflineAudioContext* context() const final;
 
     // AudioDestinationHandler
     void startRendering() override;
     void stopRendering() override;
 
     float sampleRate()  const override { return m_renderTarget->sampleRate(); }
 
     size_t renderQuantumFrames() const { return renderQuantumSize; }
 
-    WebThread* offlineRenderThread();
+    AudioWorkletThread* offlineRenderThread();
 
 private:
     OfflineAudioDestinationHandler(AudioNode&, AudioBuffer* renderTarget);
 
     static const size_t renderQuantumSize;
 
     // Set up the rendering and start. After setting the context up, it will
     // eventually call |doOfflineRendering|.
     void startOfflineRendering();
 
@@ skipping 18 matching lines @@
     bool renderIfNotSuspended(AudioBus* sourceBus, AudioBus* destinationBus, size_t numberOfFrames);
 
     // This AudioHandler renders into this AudioBuffer.
     // This Persistent doesn't make a reference cycle including the owner
     // OfflineAudioDestinationNode.
     Persistent<AudioBuffer> m_renderTarget;
     // Temporary AudioBus for each render quantum.
     RefPtr<AudioBus> m_renderBus;
 
     // Rendering thread.
-    OwnPtr<WebThread> m_renderThread;
+    // OwnPtr<WebThread> m_renderThread;
+    RefPtr<AudioWorkletThread> m_renderThread;
 
     // These variables are for counting the number of frames for the current
     // progress and the remaining frames to be processed.
     size_t m_framesProcessed;
     size_t m_framesToProcess;
 
     // This flag is necessary to distinguish the state of the context between
     // 'created' and 'suspended'. If this flag is false and the current state
     // is 'suspended', it means the context is created and have not started yet.
     bool m_isRenderingStarted;
 
     // This flag indicates whether the rendering should be suspended or not.
     bool m_shouldSuspend;
 };
 
 class OfflineAudioDestinationNode final : public AudioDestinationNode {
 public:
     static OfflineAudioDestinationNode* create(AbstractAudioContext*, AudioBuffer* renderTarget);
 
 private:
     OfflineAudioDestinationNode(AbstractAudioContext&, AudioBuffer* renderTarget);
 };
 
 } // namespace blink
 
 #endif // OfflineAudioDestinationNode_h