Fix duplicate test names in WebAudio tests

third_party/WebKit/LayoutTests/webaudio/resources/stereopanner-testing.js

 var StereoPannerTest = (function () {
 
   // Constants
   var PI_OVER_TWO = Math.PI * 0.5;
 
   var gSampleRate = 44100;
 
   // Time step when each panner node starts.
   var gTimeStep = 0.001;
 
@@ skipping 36 matching lines @@
    * @param {Object} options Test options
    * @param {Object} options.description Test description
    * @param {Object} options.numberOfInputChannels Number of input channels
    */
   function Test(options) {
 
     // Primary test flag.
     this.success = true;
 
     this.context = null;
+    this.prefix = options.prefix;
     this.numberOfInputChannels = (options.numberOfInputChannels || 1);
     switch (this.numberOfInputChannels) {
       case 1:
         this.description = 'Test for mono input';
         break;
       case 2:
         this.description = 'Test for stereo input';
         break;
     }
 
@@ skipping 102 matching lines @@
           });
         }
 
         this.impulseIndex++;
       }
     }
   };
 
 
   Test.prototype.showResult = function () {
-    Should("Number of impulses found", this.impulseIndex)
+    Should(this.prefix + "Number of impulses found", this.impulseIndex)
       .beEqualTo(gNodesToCreate);
 
-    Should("Number of impulse at the wrong offset", this.errors.length)
+    Should(this.prefix + "Number of impulse at the wrong offset", this.errors.length)
       .beEqualTo(0);
 
-    Should("Left channel error magnitude", this.maxErrorL)
+    Should(this.prefix + "Left channel error magnitude", this.maxErrorL)
       .beLessThanOrEqualTo(this.maxAllowedError);
 
-    Should("Right channel error magnitude", this.maxErrorR)
+    Should(this.prefix + "Right channel error magnitude", this.maxErrorR)
       .beLessThanOrEqualTo(this.maxAllowedError);
   };
 
 
   Test.prototype.finish = function () {
     Should(this.description, this.success)
       .summarize('passed', 'failed');
   };
 
 
@@ skipping 15 matching lines @@
 
 
   return {
     create: function (options) {
       return new Test(options);
     }
   };
 
 })();