Fix duplicate test names in WebAudio tests

third_party/WebKit/LayoutTests/webaudio/resources/audit-util.js

Index: third_party/WebKit/LayoutTests/webaudio/resources/audit-util.js
diff --git a/third_party/WebKit/LayoutTests/webaudio/resources/audit-util.js b/third_party/WebKit/LayoutTests/webaudio/resources/audit-util.js
index fb4c93c640456a986fa7882ffafecc530e21c1a1..8c837667b3713b9cb5f7844b03bbecf6cace448a 100644
--- a/third_party/WebKit/LayoutTests/webaudio/resources/audit-util.js
+++ b/third_party/WebKit/LayoutTests/webaudio/resources/audit-util.js
@@ -214,10 +214,10 @@ function compareBuffersWithConstraints(actual, expected, options) {
 
     Should("SNR", snr).beGreaterThanOrEqualTo(thresholdSNR);
 
-    Should('Maximum difference (in ulp units (' + bitDepth + '-bits))',
+    Should(options.prefix + ': Maximum difference (in ulp units (' + bitDepth + '-bits))',
       maxErrorULP).beLessThanOrEqualTo(thresholdDiffULP);
 
-    Should('Number of differences between results', diffCount)
+    Should(options.prefix + ': Number of differences between results', diffCount)
       .beLessThanOrEqualTo(thresholdDiffCount);
 }