Editor: Add function prefix to avoid conflicts.

Transforms `initialize_theme_preview_hooks` to `wp_initialize_theme_preview_hooks` to avoid conflicts with third-party code.

Follow up to [56529].

Props okat.
See #59000.


git-svn-id: https://develop.svn.wordpress.org/trunk@56757 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-includes/default-filters.php

@@ -531,7 +531,7 @@
 add_action( 'transition_post_status', '_wp_keep_alive_customize_changeset_dependent_auto_drafts', 20, 3 );
 
 // Block Theme Previews.
-add_action( 'plugins_loaded', 'initialize_theme_preview_hooks', 1 );
+add_action( 'plugins_loaded', 'wp_initialize_theme_preview_hooks', 1 );
 
 // Calendar widget cache.
 add_action( 'save_post', 'delete_get_calendar_cache' );

src/wp-includes/theme-previews.php

@@ -83,7 +83,7 @@ function wp_block_theme_activate_nonce() {
  *
  * @since 6.3.2
  */
-function initialize_theme_preview_hooks() {
+function wp_initialize_theme_preview_hooks() {
 	if ( ! empty( $_GET['wp_theme_preview'] ) ) {
 		add_filter( 'stylesheet', 'wp_get_theme_preview_path' );
 		add_filter( 'template', 'wp_get_theme_preview_path' );

tests/phpunit/tests/theme-previews.php

@@ -17,7 +17,7 @@ public function tear_down() {
 
 	public function test_initialize_theme_preview_hooks() {
 		$_GET['wp_theme_preview'] = 'twentytwentythree';
-		do_action( 'plugins_loaded' ); // Ensure `plugins_loaded` triggers `initialize_theme_preview_hooks`.
+		do_action( 'plugins_loaded' ); // Ensure `plugins_loaded` triggers `wp_initialize_theme_preview_hooks`.
 
 		$this->assertEquals( has_filter( 'stylesheet', 'wp_get_theme_preview_path' ), 10 );
 		$this->assertEquals( has_filter( 'template', 'wp_get_theme_preview_path' ), 10 );