Use "int" instead of "long" for bindings where the WebIDL uses "long".

Source/core/html/track/TextTrackRegion.h

 /*
  * Copyright (C) 2013 Google 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 45 matching lines @@
 
     TextTrack* track() const { return m_track; }
     void setTrack(TextTrack*);
 
     const String& id() const { return m_id; }
     void setId(const String&);
 
     double width() const { return m_width; }
     void setWidth(double, ExceptionCode&);
 
-    long height() const { return m_heightInLines; }
-    void setHeight(long, ExceptionCode&);
+    int height() const { return m_heightInLines; }
+    void setHeight(int, ExceptionCode&);
 
     double regionAnchorX() const { return m_regionAnchor.x(); }
     void setRegionAnchorX(double, ExceptionCode&);
 
     double regionAnchorY() const { return m_regionAnchor.y(); }
     void setRegionAnchorY(double, ExceptionCode&);
 
     double viewportAnchorX() const { return m_viewportAnchor.x(); }
     void setViewportAnchorX(double, ExceptionCode&);
 
@@ skipping 77 matching lines @@
     // soon as the animation for rolling out one line has finished, but
     // currently it is used also for non-scrolling regions to use a single
     // code path.
     Timer<TextTrackRegion> m_scrollTimer;
 };
 
 } // namespace WebCore
 
 #endif
 #endif