Change [ConstructorCallWith={Document => ExecutionContext}]

Source/modules/webaudio/AudioContext.idl

 /*
  * Copyright (C) 2010, Google Inc. All rights reserved.
  * Copyright (C) 2011 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1.  Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 10 matching lines @@
  * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 [
     WillBeGarbageCollected,
     ActiveDOMObject,
     Conditional=WEB_AUDIO,
     Constructor,
-    ConstructorCallWith=Document,
+    ConstructorCallWith=ExecutionContext,
     NoInterfaceObject,
     RaisesException=Constructor,
 ] interface AudioContext : EventTarget {
-    
+
     // All rendered audio ultimately connects to destination, which represents the audio hardware.
     readonly attribute AudioDestinationNode destination;
 
     // All scheduled times are relative to this time in seconds.
     readonly attribute double currentTime;
 
     // All AudioNodes in the context run at this sample-rate (sample-frames per second).
     readonly attribute float sampleRate;
 
     // All panning is relative to this listener.
@@ skipping 27 matching lines @@
 
     // Channel splitting and merging
     [RaisesException] ChannelSplitterNode createChannelSplitter(optional unsigned long numberOfOutputs);
     [RaisesException] ChannelMergerNode createChannelMerger(optional unsigned long numberOfInputs);
 
     // Offline rendering
     // void prepareOfflineBufferRendering(unsigned long numberOfChannels, unsigned long numberOfFrames, float sampleRate);
     attribute EventHandler oncomplete;
     void startRendering();
 };