A few missing header includes

Originally committed to SVN as r1261.

aegisub/ass_file.h

@@ -42,6 +42,7 @@
 #include <wx/wxprec.h>
 #include <fstream>
 #include <list>
+#include <vector>
 
 
 //////////////

aegisub/video_context.h

@@ -39,9 +39,17 @@
 
 ///////////
 // Headers
-#include <wx/wxprec.h>
 #include <time.h>
+#include <wx/wxprec.h>
 #include <wx/glcanvas.h>
+#include <list>
+#ifdef HAVE_APPLE_OPENGL_FRAMEWORK
+#include <OpenGL/GL.h>
+#include <OpenGL/glu.h>
+#else
+#include <GL/gl.h>
+#include <GL/glu.h>
+#endif
 #include "video_frame.h"
 
 

aegisub/video_display.h

@@ -44,6 +44,7 @@
 #include <windows.h>
 #endif
 #include <time.h>
+#include <wx/glcanvas.h>
 #include "video_context.h"
 
 

aegisub/video_provider.h

@@ -39,6 +39,7 @@
 
 //////////
 // Headers
+#include <list>
 #include "video_frame.h"
 #include "factory.h"