Move EGL and GL includes to a gles2-renderer header.
diff --git a/src/compositor-drm.c b/src/compositor-drm.c
index 42546ff..6eac8e7 100644
--- a/src/compositor-drm.c
+++ b/src/compositor-drm.c
@@ -40,6 +40,7 @@
 #include <libudev.h>
 
 #include "compositor.h"
+#include "gl-renderer.h"
 #include "evdev.h"
 #include "launcher-util.h"