Use "int" instead of "long" for bindings where the WebIDL uses "long".

Source/modules/webaudio/AudioContext.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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 85 matching lines @@
     // Document notification
     virtual void stop();
 
     Document* document() const; // ASSERTs if document no longer exists.
     bool hasDocument();
 
     AudioDestinationNode* destination() { return m_destinationNode.get(); }
     size_t currentSampleFrame() const { return m_destinationNode->currentSampleFrame(); }
     double currentTime() const { return m_destinationNode->currentTime(); }
     float sampleRate() const { return m_destinationNode->sampleRate(); }
-    unsigned long activeSourceCount() const { return static_cast<unsigned long>(m_activeSourceCount); }
+    // FIXME: Is this cast safe (what if m_activeSourceCount is negative...)
+    unsigned activeSourceCount() const { return static_cast<unsigned>(m_activeSourceCount); }
 
     void incrementActiveSourceCount();
     void decrementActiveSourceCount();
 
     PassRefPtr<AudioBuffer> createBuffer(unsigned numberOfChannels, size_t numberOfFrames, float sampleRate, ExceptionState&);
     PassRefPtr<AudioBuffer> createBuffer(ArrayBuffer*, bool mixToMono, ExceptionState&);
 
     // Asynchronous audio file data decoding.
     void decodeAudioData(ArrayBuffer*, PassRefPtr<AudioBufferCallback>, PassRefPtr<AudioBufferCallback>, ExceptionState&);
 
@@ skipping 229 matching lines @@
     // It is somewhat arbitrary and could be increased if necessary.
     enum { MaxNumberOfChannels = 32 };
 
     // Number of AudioBufferSourceNodes that are active (playing).
     int m_activeSourceCount;
 };
 
 } // WebCore
 
 #endif // AudioContext_h