Move IDLs to 39 roll

modules/webaudio/AudioParam.idl

Index: modules/webaudio/AudioParam.idl
diff --git a/modules/webaudio/AudioParam.idl b/modules/webaudio/AudioParam.idl
index e612201edc5be175d6a4ad67afcb77a48a0e8672..ce6ec86d5d25d434e089adbdec03d6dfb359e256 100644
--- a/modules/webaudio/AudioParam.idl
+++ b/modules/webaudio/AudioParam.idl
@@ -27,27 +27,27 @@
  */
 
 [
-    WillBeGarbageCollected,
+    GarbageCollected,
     Conditional=WEB_AUDIO
 ] interface AudioParam {
     attribute float value;
     readonly attribute float defaultValue;
 
     // Parameter automation.
-    void setValueAtTime(float value, double time);
-    void linearRampToValueAtTime(float value, double time);
+    [RaisesException] void setValueAtTime(float value, double time);
+    [RaisesException] void linearRampToValueAtTime(float value, double time);
     [RaisesException] void exponentialRampToValueAtTime(float value, double time);
 
     // Exponentially approach the target with a rate having the given time constant.
-    void setTargetAtTime(float target, double time, double timeConstant);
+    [RaisesException] void setTargetAtTime(float target, double time, double timeConstant);
 
     // Sets an array of arbitrary parameter values starting at time for the given duration.
     // The number of values will be scaled to fit into the desired duration.
     // FIXMEDART(ager): Auto-generate this custom method when the info about
     // retaining typed arrays is in the IDL.
-    [DartCustom] void setValueCurveAtTime(Float32Array values, double time, double duration);
+    [RaisesException, DartCustom] void setValueCurveAtTime(Float32Array values, double time, double duration);
 
     // Cancels all scheduled parameter changes with times greater than or equal to startTime.
-    void cancelScheduledValues(double startTime);
+    [RaisesException] void cancelScheduledValues(double startTime);
 
 };