Cleanup: Alembic, move the C++ code to `blender::io::alembic` namespace

This commit only moves code into the `blender::io::alembic` namespace,
it does not move `static` functions into an anonymous namespace.

No functional changes.

1 files changed, 11 insertions, 3 deletions

diff --git a/source/blender/io/alembic/intern/abc_util.h b/source/blender/io/alembic/intern/abc_util.h
index 8a5763bb38b..fbad1cce306 100644
--- a/source/blender/io/alembic/intern/abc_util.h
+++ b/source/blender/io/alembic/intern/abc_util.h
@@ -41,12 +41,16 @@ struct CacheReader {
 
 using Alembic::Abc::chrono_t;
 
-class AbcObjectReader;
-struct ImportSettings;
-
 struct ID;
 struct Object;
 
+namespace blender {
+namespace io {
+namespace alembic {
+
+class AbcObjectReader;
+struct ImportSettings;
+
 std::string get_id_name(const ID *const id);
 std::string get_id_name(const Object *const ob);
 std::string get_valid_abc_name(const char *name);
@@ -165,4 +169,8 @@ class SimpleLogger {
  */
 std::ostream &operator<<(std::ostream &os, const SimpleLogger &logger);
 
+}  // namespace alembic
+}  // namespace io
+}  // namespace blender
+
 #endif /* __ABC_UTIL_H__ */