Get rid of custom bindings for AudioContext's constructor

Source/modules/webaudio/AudioContext.h

Index: Source/modules/webaudio/AudioContext.h
diff --git a/Source/modules/webaudio/AudioContext.h b/Source/modules/webaudio/AudioContext.h
index 0585225c2b5251b55b5349e4d1e37d108df8e85d..51e0a3863275b01e1e998d599e72054d4616d9d9 100644
--- a/Source/modules/webaudio/AudioContext.h
+++ b/Source/modules/webaudio/AudioContext.h
@@ -77,10 +77,10 @@ class WaveShaperNode;
 class AudioContext : public ActiveDOMObject, public ScriptWrappable, public ThreadSafeRefCounted<AudioContext>, public EventTargetWithInlineData {
 public:
     // Create an AudioContext for rendering to the audio hardware.
-    static PassRefPtr<AudioContext> create(Document*);
+    static PassRefPtr<AudioContext> create(Document&, ExceptionState&);
 
-    // Create an AudioContext for offline (non-realtime) rendering.
-    static PassRefPtr<AudioContext> createOfflineContext(Document*, unsigned numberOfChannels, size_t numberOfFrames, float sampleRate, ExceptionState&);
+    // Deprecated: create an AudioContext for offline (non-realtime) rendering.
+    static PassRefPtr<AudioContext> create(Document&, unsigned numberOfChannels, size_t numberOfFrames, float sampleRate, ExceptionState&);
 
     virtual ~AudioContext();