[wp-trac] [WordPress Trac] #59296: Sync minor code quality tweaks to WP_REST_Global_Styles_Controller

[WordPress Trac]

#59296: Sync minor code quality tweaks to WP_REST_Global_Styles_Controller
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 Reporter:  ramonopoly   |      Owner:  (none)
     Type:  enhancement  |     Status:  new
 Priority:  normal       |  Milestone:  6.4
Component:  Editor       |    Version:  trunk
 Severity:  normal       |   Keywords:  has-patch gutenberg-merge
  Focuses:               |
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 For 6.4, sync a couple of minor code quality tweaks to the
 WP_REST_Global_Styles_Controller class.

 1. Remove unnecessary local variable in ::get_theme_items()
 2. Change ::validate_custom_css() access modifier from private to
 protected so that the method is inherited if the class is extended

 Gutenberg PRs:

 https://github.com/WordPress/gutenberg/pull/53618
 https://github.com/WordPress/gutenberg/pull/52819

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Ticket URL: <https://core.trac.wordpress.org/ticket/59296>
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