Media: Pass EXIF data to the wp_read_image_metadata filter.

Props desrosj.
Merges [42879] to the 5.0 branch.
Fixes #43624.

git-svn-id: https://develop.svn.wordpress.org/branches/5.0@43750 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-admin/includes/image.php

@@ -420,6 +420,8 @@ function wp_read_image_metadata( $file ) {
 		 }
 	}
 
+	$exif = array(); 
+
 	/**
 	 * Filters the image types to check for exif data.
 	 *
@@ -507,13 +509,15 @@ function wp_read_image_metadata( $file ) {
 	 *
 	 * @since 2.5.0
 	 * @since 4.4.0 The `$iptc` parameter was added.
+	 * @since 5.0.0 The `$exif` parameter was added.
 	 *
 	 * @param array  $meta       Image meta data.
 	 * @param string $file       Path to image file.
 	 * @param int    $image_type Type of image, one of the `IMAGETYPE_XXX` constants.
 	 * @param array  $iptc       IPTC data.
+	 * @param array  $exif       EXIF data.
 	 */
-	return apply_filters( 'wp_read_image_metadata', $meta, $file, $image_type, $iptc );
+	return apply_filters( 'wp_read_image_metadata', $meta, $file, $image_type, $iptc, $exif );
 
 }