Move headers from src/experimental/usd to include/experimental/usd

PiperOrigin-RevId: 775269423
Change-Id: Ifca6c3ead32b9fb3f02784ed38a9efae300be410

include/mujoco/experimental/usd/mjcPhysics/api.h

@@ -0,0 +1,42 @@
+// Copyright 2025 DeepMind Technologies Limited
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#ifndef MJCPHYSICS_API_H
+#define MJCPHYSICS_API_H
+
+#include "pxr/base/arch/export.h"
+
+#if defined(PXR_STATIC)
+#define MJCPHYSICS_API
+#define MJCPHYSICS_API_TEMPLATE_CLASS(...)
+#define MJCPHYSICS_API_TEMPLATE_STRUCT(...)
+#define MJCPHYSICS_LOCAL
+#else
+#if defined(MJCPHYSICS_EXPORTS)
+#define MJCPHYSICS_API ARCH_EXPORT
+#define MJCPHYSICS_API_TEMPLATE_CLASS(...) \
+  ARCH_EXPORT_TEMPLATE(class, __VA_ARGS__)
+#define MJCPHYSICS_API_TEMPLATE_STRUCT(...) \
+  ARCH_EXPORT_TEMPLATE(struct, __VA_ARGS__)
+#else
+#define MJCPHYSICS_API ARCH_IMPORT
+#define MJCPHYSICS_API_TEMPLATE_CLASS(...) \
+  ARCH_IMPORT_TEMPLATE(class, __VA_ARGS__)
+#define MJCPHYSICS_API_TEMPLATE_STRUCT(...) \
+  ARCH_IMPORT_TEMPLATE(struct, __VA_ARGS__)
+#endif
+#define MJCPHYSICS_LOCAL ARCH_HIDDEN
+#endif
+
+#endif