Revert "Transition modules/** to use ExceptionState"

Source/modules/mediastream/RTCDTMFSender.h

Index: Source/modules/mediastream/RTCDTMFSender.h
diff --git a/Source/modules/mediastream/RTCDTMFSender.h b/Source/modules/mediastream/RTCDTMFSender.h
index cb8cc329ac73042fd64ab50f48db13a2ced0a887..8f3819789a6e223760269348f784e9d6d20e0cc3 100644
--- a/Source/modules/mediastream/RTCDTMFSender.h
+++ b/Source/modules/mediastream/RTCDTMFSender.h
@@ -35,14 +35,13 @@
 
 namespace WebCore {
 
-class ExceptionState;
 class MediaStreamTrack;
-class RTCDTMFSenderHandler;
 class RTCPeerConnectionHandler;
+class RTCDTMFSenderHandler;
 
 class RTCDTMFSender : public RefCounted<RTCDTMFSender>, public ScriptWrappable, public EventTarget, public RTCDTMFSenderHandlerClient, public ActiveDOMObject {
 public:
-    static PassRefPtr<RTCDTMFSender> create(ScriptExecutionContext*, RTCPeerConnectionHandler*, PassRefPtr<MediaStreamTrack>, ExceptionState&);
+    static PassRefPtr<RTCDTMFSender> create(ScriptExecutionContext*, RTCPeerConnectionHandler*, PassRefPtr<MediaStreamTrack>, ExceptionCode&);
     ~RTCDTMFSender();
 
     bool canInsertDTMF() const;
@@ -51,9 +50,9 @@ public:
     long duration() const { return m_duration; }
     long interToneGap() const { return m_interToneGap; }
 
-    void insertDTMF(const String& tones, ExceptionState&);
-    void insertDTMF(const String& tones, long duration, ExceptionState&);
-    void insertDTMF(const String& tones, long duration, long interToneGap, ExceptionState&);
+    void insertDTMF(const String& tones, ExceptionCode&);
+    void insertDTMF(const String& tones, long duration, ExceptionCode&);
+    void insertDTMF(const String& tones, long duration, long interToneGap, ExceptionCode&);
 
     DEFINE_ATTRIBUTE_EVENT_LISTENER(tonechange);