One last fix to the BeOS build. Now compiles fully.

widget/src/beos/nsTextHelper.cpp

@@ -22,7 +22,7 @@
 #include "nsGUIEvent.h"
 #include "nsString.h"
 #include "nsStringUtil.h"
-
+#include <TextView.h>
 
 NS_METHOD nsTextHelper::PreCreateWidget(nsWidgetInitData *aInitData)
 {