Remove AudioBufferSourceNode.looping

Source/core/frame/UseCounter.h

 /*
  * Copyright (C) 2012 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 114 matching lines @@
         DeprecatedFlexboxChromeExtension,
         UnusedSlot04,
         UnprefixedPerformanceTimeline,
         PrefixedPerformanceTimeline,
         UnprefixedUserTiming,
         PrefixedUserTiming,
         WindowEvent,
         ContentSecurityPolicyWithBaseElement,
         PrefixedMediaAddKey,
         PrefixedMediaGenerateKeyRequest,
-        WebAudioLooping,
+        UnusedSlot10, // Removed, was AudioBufferSourceNode.looping.
         DocumentClear,
         PrefixedTransitionMediaFeature,
         SVGFontElement,
         XMLDocument,
         XSLProcessingInstruction,
         XSLTProcessor,
         SVGSwitchElement,
         UnusedSlot05, // Removed, was document.webkitRegister
         HTMLShadowElementOlderShadowRoot,
         DocumentAll,
@@ skipping 187 matching lines @@
 
     void updateMeasurements();
 
     OwnPtr<BitVector> m_countBits;
     BitVector m_CSSFeatureBits;
 };
 
 } // namespace WebCore
 
 #endif // UseCounter_h