CodeCleanup: move include statements before extern "C"

Mistake on recent changes that would fail when used in CPP.

source/blender/blenkernel/BKE_sequencer_offscreen.h

@@ -24,16 +24,16 @@
  * \ingroup bke
  */
 
-#ifdef __cplusplus
-extern "C" {
-#endif
-
 #include "DNA_object_enums.h"
 
 #include "DNA_view3d_types.h"
 
 #include "IMB_imbuf_types.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 typedef struct ImBuf *(*SequencerDrawView)(struct Depsgraph *depsgraph,
                                            struct Scene *scene,
                                            struct View3DShading *shading_override,

source/blender/editors/include/ED_view3d_offscreen.h

@@ -24,6 +24,11 @@
 #ifndef __ED_VIEW3D_OFFSCREEN_H__
 #define __ED_VIEW3D_OFFSCREEN_H__
 
+#include "DNA_view3d_types.h"
+#include "DNA_object_enums.h"
+
+#include "IMB_imbuf_types.h"
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -37,10 +42,6 @@ struct GPUOffScreen;
 struct GPUViewport;
 struct View3DShading;
 
-#include "DNA_view3d_types.h"
-#include "DNA_object_enums.h"
-#include "IMB_imbuf_types.h"
-
 void ED_view3d_draw_offscreen(struct Depsgraph *depsgraph,
                               struct Scene *scene,
                               eDrawType drawtype,