Roll IDL to Dartium37 (r181268)

modules/webaudio/WaveShaperNode.idl

Index: modules/webaudio/WaveShaperNode.idl
diff --git a/modules/webaudio/WaveShaperNode.idl b/modules/webaudio/WaveShaperNode.idl
index e1ee72b63267350bbc6f5b7e1c47376e7df667d9..834b39e59bbd416f81b544ca41e131fd556c545c 100644
--- a/modules/webaudio/WaveShaperNode.idl
+++ b/modules/webaudio/WaveShaperNode.idl
@@ -22,9 +22,17 @@
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+enum OverSampleType {
+    "none",
+    "2x",
+    "4x"
+};
+
 [
     Conditional=WEB_AUDIO
 ] interface WaveShaperNode : AudioNode {
-    attribute Float32Array curve;
-    [RaisesException=Setter] attribute DOMString oversample;
+    // FIXMEDART(ager): Auto-generate this custom method when the info about
+    // retaining typed arrays is in the IDL.
+    [DartCustom=Setter] attribute Float32Array curve;
+    [RaisesException=Setter] attribute OverSampleType oversample;
 };