Add Chromium-only Blender WebEngine parity work

blender-5.2.0/source/blender/animrig/ANIM_nla.hh

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+/* SPDX-FileCopyrightText: 2024 Blender Authors. All rights reserved.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later */
+
+#pragma once
+
+/** \file
+ * \ingroup animrig
+ */
+
+#include "ANIM_action.hh"
+
+namespace blender {
+
+struct ID;
+struct NlaStrip;
+
+namespace animrig::nla {
+
+/**
+ * Assign the Action to this NLA strip.
+ *
+ * Similar to animrig::assign_action(), this tries to find a suitable slot.
+ *
+ * \see animrig::assign_action
+ *
+ * \returns whether the assignment was ok.
+ */
+bool assign_action(NlaStrip &strip, Action &action, ID &animated_id);
+
+void unassign_action(NlaStrip &strip, ID &animated_id);
+
+/**
+ * Assign a slot to the NLA strip.
+ *
+ * The strip should already have an Action assigned to it, and the given Slot should belong to that
+ * Action.
+ *
+ * \param slot_to_assign: the slot to assign, or nullptr to un-assign the current slot.
+ */
+ActionSlotAssignmentResult assign_action_slot(NlaStrip &strip,
+                                              Slot *slot_to_assign,
+                                              ID &animated_id);
+
+ActionSlotAssignmentResult assign_action_slot_handle(NlaStrip &strip,
+                                                     slot_handle_t slot_handle,
+                                                     ID &animated_id);
+
+/**
+ * Keyframing function taking the NLA into account.
+ *
+ * Inserts a key into the given FCurve with the current value of the PropertyRNA remapped through
+ * the NLA stack.
+ *
+ * With the removal of the NLA any calls to this can be redirected to
+ * animrig::insert_keyframe_direct.
+ *
+ * \warning This bypasses all animation layer and strip logic. Use with caution. If unsure, use
+ * `insert_keyframes` instead.
+ */
+bool insert_keyframe_direct(ReportList *reports,
+                            PointerRNA ptr,
+                            PropertyRNA *prop,
+                            FCurve *fcu,
+                            const AnimationEvalContext *anim_eval_context,
+                            eBezTriple_KeyframeType keytype,
+                            NlaKeyframingContext *nla_context,
+                            eInsertKeyFlags flag);
+}  // namespace animrig::nla
+}  // namespace blender