Combine internal DRM headers into one

Everything always just included both anyway

backend/drm/backend.c

@@ -12,8 +12,7 @@
 #include <wlr/common/list.h>
 #include <wlr/backend/interface.h>
 #include "backend/udev.h"
-#include "backend/drm/backend.h"
-#include "backend/drm/drm.h"
+#include "backend/drm.h"
 #include "common/log.h"
 
 static bool wlr_drm_backend_init(struct wlr_backend_state *state) {

backend/drm/drm.c

@@ -13,8 +13,7 @@
 #include <GLES3/gl3.h>
 #include <wayland-server.h>
 #include <wlr/backend/interface.h>
-#include "backend/drm/backend.h"
-#include "backend/drm/drm.h"
+#include "backend/drm.h"
 #include "common/log.h"
 #include "types.h"
 

include/backend/drm.h

@@ -1,14 +1,23 @@
-#ifndef DRM_H
-#define DRM_H
+#ifndef DRM_BACKEND_H
+#define DRM_BACKEND_H
 
 #include <stdbool.h>
+#include <stddef.h>
 #include <stdint.h>
+#include <wayland-server.h>
 #include <xf86drmMode.h>
 #include <EGL/egl.h>
+#include <libudev.h>
 #include <gbm.h>
 
+#include <wlr/session.h>
+#include <wlr/common/list.h>
+#include <wlr/backend/drm.h>
+
 #include "backend/egl.h"
-#include "backend.h"
+#include "backend/udev.h"
+#include "event.h"
+#include "drm.h"
 
 struct wlr_drm_renderer {
 	int fd;
@@ -19,6 +28,25 @@ struct wlr_drm_renderer {
 bool wlr_drm_renderer_init(struct wlr_drm_renderer *renderer, int fd);
 void wlr_drm_renderer_free(struct wlr_drm_renderer *renderer);
 
+struct wlr_backend_state {
+	int fd;
+	dev_t dev;
+
+	struct wlr_backend *backend;
+	struct wl_event_source *drm_event;
+
+	struct wl_listener device_paused;
+	struct wl_listener device_resumed;
+	struct wl_listener drm_invalidated;
+
+	uint32_t taken_crtcs;
+	list_t *outputs;
+
+	struct wlr_drm_renderer renderer;
+	struct wlr_session *session;
+	struct wlr_udev *udev;
+};
+
 enum wlr_drm_output_state {
 	DRM_OUTPUT_DISCONNECTED,
 	DRM_OUTPUT_NEEDS_MODESET,

include/backend/drm/backend.h

@@ -1,39 +0,0 @@
-#ifndef DRM_BACKEND_H
-#define DRM_BACKEND_H
-
-#include <stdbool.h>
-#include <stddef.h>
-#include <EGL/egl.h>
-#include <gbm.h>
-#include <libudev.h>
-#include <wayland-server.h>
-
-#include <wlr/session.h>
-#include <wlr/common/list.h>
-#include <wlr/backend/drm.h>
-
-#include "backend.h"
-#include "backend/udev.h"
-#include "event.h"
-#include "drm.h"
-
-struct wlr_backend_state {
-	int fd;
-	dev_t dev;
-
-	struct wlr_backend *backend;
-	struct wl_event_source *drm_event;
-
-	struct wl_listener device_paused;
-	struct wl_listener device_resumed;
-	struct wl_listener drm_invalidated;
-
-	uint32_t taken_crtcs;
-	list_t *outputs;
-
-	struct wlr_drm_renderer renderer;
-	struct wlr_session *session;
-	struct wlr_udev *udev;
-};
-
-#endif