Rename ExceptionCode constants to use the names in the spec (2/3)

Source/modules/mediastream/MediaStream.cpp

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  * Copyright (C) 2011, 2012 Ericsson AB. 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 117 matching lines @@
 }
 
 bool MediaStream::ended() const
 {
     return m_stopped || m_descriptor->ended();
 }
 
 void MediaStream::addTrack(PassRefPtr<MediaStreamTrack> prpTrack, ExceptionCode& ec)
 {
     if (ended()) {
-        ec = INVALID_STATE_ERR;
+        ec = InvalidStateError;
         return;
     }
 
     if (!prpTrack) {
-        ec = TYPE_MISMATCH_ERR;
+        ec = TypeMismatchError;
         return;
     }
 
     RefPtr<MediaStreamTrack> track = prpTrack;
 
     if (getTrackById(track->id()))
         return;
 
     RefPtr<MediaStreamComponent> component = MediaStreamComponent::create(m_descriptor.get(), track->component()->source());
     RefPtr<MediaStreamTrack> newTrack = MediaStreamTrack::create(scriptExecutionContext(), component.get());
 
     switch (component->source()->type()) {
     case MediaStreamSource::TypeAudio:
         m_audioTracks.append(newTrack);
         break;
     case MediaStreamSource::TypeVideo:
         m_videoTracks.append(newTrack);
         break;
     }
 
     m_descriptor->addComponent(component.release());
 
     MediaStreamCenter::instance().didAddMediaStreamTrack(m_descriptor.get(), newTrack->component());
 }
 
 void MediaStream::removeTrack(PassRefPtr<MediaStreamTrack> prpTrack, ExceptionCode& ec)
 {
     if (ended()) {
-        ec = INVALID_STATE_ERR;
+        ec = InvalidStateError;
         return;
     }
 
     if (!prpTrack) {
-        ec = TYPE_MISMATCH_ERR;
+        ec = TypeMismatchError;
         return;
     }
 
     RefPtr<MediaStreamTrack> track = prpTrack;
 
     size_t pos = notFound;
     switch (track->component()->source()->type()) {
     case MediaStreamSource::TypeAudio:
         pos = m_audioTracks.find(track);
         if (pos != notFound)
@@ skipping 166 matching lines @@
 
     events.clear();
 }
 
 URLRegistry& MediaStream::registry() const
 {
     return MediaStreamRegistry::registry();
 }
 
 } // namespace WebCore