[wp-trac] [WordPress Trac] #22924: Add filter to theme editor accepted files

[WordPress Trac]

#22924: Add filter to theme editor accepted files
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 Reporter:  pross             |       Owner:  wonderboymusic
     Type:  enhancement       |      Status:  reopened
 Priority:  normal            |   Milestone:  4.4
Component:  Themes            |     Version:  3.5
 Severity:  normal            |  Resolution:
 Keywords:  has-patch commit  |     Focuses:
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Comment (by DrewAPicture):

 @SergeyBiryukov: [attachment:22924.5.diff]:

 * Removes txt type per your patch
 * `$theme` is a `WP_Theme` object
 * DRYs the base list of types
 * Adds an `array_unique()` around the merge

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Ticket URL: <https://core.trac.wordpress.org/ticket/22924#comment:15>
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