Update code generator for dartium dart:html with typeddata.

tools/dom/idl/dart/dart.idl

Index: tools/dom/idl/dart/dart.idl
diff --git a/tools/dom/idl/dart/dart.idl b/tools/dom/idl/dart/dart.idl
index def76c9c0185c95adb78d29dd51847a2ca847504..4e4cd890d1d6eec279b7fad0f4463e099732ea31 100644
--- a/tools/dom/idl/dart/dart.idl
+++ b/tools/dom/idl/dart/dart.idl
@@ -2,7 +2,25 @@
 
 [Supplemental,
  Constructor]
-interface AudioContext {};
+interface AudioContext {
+  // TODO(ager): Auto-generate this custom method when the info about retaining
+  // typed arrays is in the IDL.
+  [Custom] void decodeAudioData(in ArrayBuffer audioData, in AudioBufferCallback successCallback, in AudioBufferCallback errorCallback);
+};
+
+[Supplemental]
+interface WaveShaperNode {
+  // TODO(ager): Auto-generate this custom method when the info about retaining
+  // typed arrays is in the IDL.
+  [CustomSetter] attribute Float32Array curve;
+};
+
+[Supplemental]
+interface AudioParam {
+  // TODO(ager): Auto-generate this custom method when the info about retaining
+  // typed arrays is in the IDL.
+  [Custom] void setValueCurveAtTime(in Float32Array values, in float time, in float duration);
+};
 
 [Supplemental]
 interface Document {