Split "Online" and "Offline" AudioContext processing

Source/platform/audio/ReverbConvolver.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 33 matching lines @@
 class AudioChannel;
 class WebThread;
 
 class PLATFORM_EXPORT ReverbConvolver {
     WTF_MAKE_NONCOPYABLE(ReverbConvolver);
 public:
     // maxFFTSize can be adjusted (from say 2048 to 32768) depending on how much precision is necessary.
     // For certain tweaky de-convolving applications the phase errors add up quickly and lead to non-sensical results with
     // larger FFT sizes and single-precision floats.  In these cases 2048 is a good size.
     // If not doing multi-threaded convolution, then should not go > 8192.
-    ReverbConvolver(AudioChannel* impulseResponse, size_t renderSliceSize, size_t maxFFTSize, size_t convolverRenderPhase, bool useBackgroundThreads);
+    ReverbConvolver(AudioChannel* impulseResponse, size_t renderSliceSize, size_t maxFFTSize, size_t convolverRenderPhase, bool hasRealtimeConstraint);
     ~ReverbConvolver();
 
     void process(const AudioChannel* sourceChannel, AudioChannel* destinationChannel, size_t framesToProcess);
     void reset();
 
     ReverbInputBuffer* inputBuffer() { return &m_inputBuffer; }
 
     size_t latencyFrames() const;
 private:
     void processInBackground();
@@ skipping 14 matching lines @@
     // But don't exceed this size in the real-time thread (if we're doing background processing).
     size_t m_maxRealtimeFFTSize;
 
     // Background thread and synchronization
     OwnPtr<WebThread> m_backgroundThread;
 };
 
 } // namespace blink
 
 #endif // ReverbConvolver_h