Implement ConstantSourceNode

third_party/WebKit/Source/modules/webaudio/ConstantSourceNode.idl

Index: third_party/WebKit/Source/modules/webaudio/ConstantSourceNode.idl
diff --git a/third_party/WebKit/Source/modules/webaudio/ConstantSourceNode.idl b/third_party/WebKit/Source/modules/webaudio/ConstantSourceNode.idl
new file mode 100644
index 0000000000000000000000000000000000000000..3773817d8b6e175a6f25ed8d0e2bf666566c03b5
--- /dev/null
+++ b/third_party/WebKit/Source/modules/webaudio/ConstantSourceNode.idl
@@ -0,0 +1,16 @@
+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// See https://webaudio.github.io/web-audio-api/#ConstantSourceNode
+[
+    Constructor(BaseAudioContext context, optional ConstantSourceOptions options),
+    RaisesException=Constructor,
+    ActiveScriptWrappable,
+]
+interface ConstantSourceNode : AudioSourceNode {
+    readonly attribute AudioParam offset;
+    [RaisesException] void start(optional double when);
+    [RaisesException] void stop(optional double when);
+    attribute EventHandler onended;
+};