Bug 1057585 - Disable WebAudio APIs in prerendering; r=jst

dom/webidl/AudioBufferSourceNode.webidl

@@ -20,10 +20,10 @@ interface AudioBufferSourceNode : AudioNode {
     attribute double loopStart;
     attribute double loopEnd;
 
-    [Throws]
+    [Throws, UnsafeInPrerendering]
     void start(optional double when = 0, optional double grainOffset = 0,
                optional double grainDuration);
-    [Throws]
+    [Throws, UnsafeInPrerendering]
     void stop(optional double when = 0);
 
     attribute EventHandler onended;

dom/webidl/AudioContext.webidl

@@ -45,9 +45,9 @@ interface AudioContext : EventTarget {
     StereoPannerNode createStereoPanner();
     [NewObject]
     AnalyserNode createAnalyser();
-    [NewObject, Throws]
+    [NewObject, Throws, UnsafeInPrerendering]
     MediaElementAudioSourceNode createMediaElementSource(HTMLMediaElement mediaElement);
-    [NewObject, Throws]
+    [NewObject, Throws, UnsafeInPrerendering]
     MediaStreamAudioSourceNode createMediaStreamSource(MediaStream mediaStream);
     [NewObject]
     GainNode createGain();

dom/webidl/OscillatorNode.webidl

@@ -26,9 +26,9 @@ interface OscillatorNode : AudioNode {
     readonly attribute AudioParam frequency; // in Hertz
     readonly attribute AudioParam detune; // in Cents
 
-    [Throws]
+    [Throws, UnsafeInPrerendering]
     void start(optional double when = 0);
-    [Throws]
+    [Throws, UnsafeInPrerendering]
     void stop(optional double when = 0);
     void setPeriodicWave(PeriodicWave periodicWave);