Change the default panning mode from HRTF to equal-power

LayoutTests/webaudio/panner-loop.html

Index: LayoutTests/webaudio/panner-loop.html
diff --git a/LayoutTests/webaudio/panner-loop.html b/LayoutTests/webaudio/panner-loop.html
index e069dfdf963e83c22cd91a86444ecf06adcfa54b..c8bc2ea6ae0c86ff99c456db49375bb20ce12293 100644
--- a/LayoutTests/webaudio/panner-loop.html
+++ b/LayoutTests/webaudio/panner-loop.html
@@ -27,7 +27,7 @@
 
           var sampleRate = 44100;
           var renderLengthSeconds = 1;
-      
+
           // Create offline audio context.
           var context = new OfflineAudioContext(2, sampleRate * renderLengthSeconds, sampleRate);
 
@@ -59,6 +59,9 @@
           dry.connect(output);
 
           var panner = context.createPanner();
+          // Default is 'equalpower', so change it to 'HRTF' for testing.
+          // https://code.google.com/p/chromium/issues/detail?id=424356
+          panner.panningModel = 'HRTF';

[Raymond Toy, 2014/10/17 17:39:30]

If you don't do this, will the test fail? I don't think the model really matters
for this test, so I would just remove this and the comment.

[hongchan, 2014/10/17 18:13:40]

Done.

           panner.coneOuterGain = 0.1;
           panner.coneOuterAngle = 180;
           panner.coneInnerAngle = 0;
@@ -75,10 +78,10 @@
                                };
           context.startRendering();
       }
-      
+
       runTest();
       successfullyParsed = true;
     </script>
-    
+
   </body>
 </html>