Add Chromium-only Blender WebEngine parity work

blender-5.2.0/source/blender/freestyle/FRS_freestyle.h

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+/* SPDX-FileCopyrightText: 2023 Blender Authors
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later */
+
+#pragma once
+
+/** \file
+ * \ingroup freestyle
+ */
+
+namespace blender {
+
+struct FreestyleConfig;
+struct FreestyleLineStyle;
+struct Material;
+struct Render;
+
+struct FreestyleGlobals {
+  struct Scene *scene;
+
+  /* camera information */
+  float viewpoint[3];
+  float mv[4][4];
+  float proj[4][4];
+  int viewport[4];
+};
+
+extern struct FreestyleGlobals g_freestyle;
+
+/* Rendering */
+void FRS_init(void);
+void FRS_set_context(struct bContext *C);
+int FRS_is_freestyle_enabled(struct ViewLayer *view_layer);
+void FRS_init_stroke_renderer(struct Render *re);
+void FRS_begin_stroke_rendering(struct Render *re);
+void FRS_do_stroke_rendering(struct Render *re, struct ViewLayer *view_layer);
+void FRS_end_stroke_rendering(struct Render *re);
+void FRS_free_view_map_cache(void);
+void FRS_composite_result(struct Render *re,
+                          struct ViewLayer *view_layer,
+                          struct Render *freestyle_render);
+void FRS_exit(void);
+
+/* FreestyleConfig.linesets */
+void FRS_copy_active_lineset(struct FreestyleConfig *config);
+void FRS_paste_active_lineset(struct FreestyleConfig *config);
+void FRS_delete_active_lineset(struct FreestyleConfig *config);
+/**
+ * Reinsert the active lineset at an offset \a direction from current position.
+ * \return if position of active lineset has changed.
+ */
+bool FRS_move_active_lineset(struct FreestyleConfig *config, int direction);
+
+/* Testing */
+struct Material *FRS_create_stroke_material(struct Main *bmain,
+                                            struct FreestyleLineStyle *linestyle);
+
+}  // namespace blender