3 functions implement hook_stream_wrappers()

Note: the procedural functions in this list are found by pattern matching, so the list may include some functions that are not actually implementations of this hook.

file_get_stream_wrappers in includes/file.inc

Provides Drupal stream wrapper registry.

file_test_stream_wrappers in modules/simpletest/tests/file_test.module

Implements hook_stream_wrappers().

system_stream_wrappers in modules/system/system.module

Implements hook_stream_wrappers().