Measure WebAudio node constructor usage

third_party/WebKit/Source/core/frame/UseCounter.h

Index: third_party/WebKit/Source/core/frame/UseCounter.h
diff --git a/third_party/WebKit/Source/core/frame/UseCounter.h b/third_party/WebKit/Source/core/frame/UseCounter.h
index 0053f26fdce9e1a9a9df31dffd216ce4dcf4650c..e451205f40393903c98dc0b247b07fd15237ba0b 100644
--- a/third_party/WebKit/Source/core/frame/UseCounter.h
+++ b/third_party/WebKit/Source/core/frame/UseCounter.h
@@ -1386,6 +1386,27 @@ class CORE_EXPORT UseCounter {
     AppInstalledEventAddListener = 1700,
     AudioContextGetOutputTimestamp = 1701,
     V8MediaStreamAudioDestinationNode_Constructor = 1702,
+    V8AnalyserNode_Constructor = 1703,
+    V8AudioBuffer_Constructor = 1704,
+    V8AudioBufferSourceNode_Constructor = 1705,
+    V8AudioProcessingEvent_Constructor = 1706,
+    V8BiquadFilterNode_Constructor = 1707,
+    V8ChannelMergerNode_Constructor = 1708,
+    V8ChannelSplitterNode_Constructor = 1709,
+    V8ConstantSourceNode_Constructor = 1710,
+    V8ConvolverNode_Constructor = 1711,
+    V8DelayNode_Constructor = 1712,
+    V8DynamicsCompressorNode_Constructor = 1713,
+    V8GainNode_Constructor = 1714,
+    V8IIRFilterNode_Constructor = 1715,
+    V8MediaElementAudioSourceNode_Constructor = 1716,
+    V8MediaStreamAudioSourceNode_Constructor = 1717,
+    V8OfflineAudioCompletionEvent_Constructor = 1718,
+    V8OscillatorNode_Constructor = 1719,
+    V8PannerNode_Constructor = 1720,
+    V8PeriodicWave_Constructor = 1721,
+    V8StereoPannerNode_Constructor = 1722,
+    V8WaveShaperNode_Constructor = 1723,
 
     // Add new features immediately above this line. Don't change assigned
     // numbers of any item, and don't reuse removed slots.