Bug 6148 depends on 17 bugs:

•    6148: WebKit doesn't shape characters (like Arabic) across style changes [NEW; assigned to mmaxfield]
  •    300583: [text shaping] Add support for text shaping across inline boxes for non-complex text [NEW; assigned to webkit-unassigned]
  •    298830: [text shaping] Add shaping-boundary/start/end/in-between bits to line run and display box [RESOLVED FIXED; assigned to zalan]
  •    298889: [text shaping] Set up shaping boundary for runs. [RESOLVED FIXED; assigned to zalan]
  •    298895: [text shaping] Add 'enable/disable text shaping across inline boxes' to settings [RESOLVED FIXED; assigned to zalan]
  •    298902: [text shaping] Paint all text boxes inside a "shape range" [RESOLVED FIXED; assigned to zalan]
  •    298953: [text shaping] Line breaking needs to know the shaped content width [RESOLVED FIXED; assigned to zalan]
  •    298964: [text shaping] Collect shaped glyph bounds for text run [RESOLVED FIXED; assigned to zalan]
  •    299106: [text shaping] Shaped content has to have supported content all the way from 'start' till 'end' [RESOLVED FIXED; assigned to zalan]
  •    299109: [text shaping] Last character does not participate in shaping [RESOLVED FIXED; assigned to zalan]
  •    299129: [text shaping] Selection paint rect should follow shaped content [RESOLVED FIXED; assigned to zalan]
  •    299226: [text shaping] Shaped content may break at arbitrary position causing incorrect resolved width [RESOLVED FIXED; assigned to zalan]
  •    299605: [text shaping] Move 'Text Shaping Across Inline Boxes' from unstable to preview status [RESOLVED FIXED; assigned to zalan]
    •    299624: [text shaping] Fix css/css-text/shaping/shaping-012.html and css/css-text/shaping/shaping-013.html [RESOLVED FIXED; assigned to zalan]
    •    299631: [text shaping] css/css-text/boundary-shaping/boundary-shaping-009.html fails when decoration is only on one of the (inline) sides [RESOLVED FIXED; assigned to zalan]
  •    299624: [text shaping] Fix css/css-text/shaping/shaping-012.html and css/css-text/shaping/shaping-013.html [RESOLVED FIXED; assigned to zalan] (*)
  •    299902: [text shaping] Letter spacing introduces gaps between shaped glyphs [RESOLVED FIXED; assigned to zalan]
  •    299913: [text shaping] Fix imported/w3c/web-platform-tests/css/css-text/boundary-shaping/boundary-shaping-009.html [RESOLVED FIXED; assigned to zalan]
  •    300441: [text shaping] Move 'Text Shaping Across Inline Boxes' from preview to stable status [RESOLVED FIXED; assigned to zalan]

Bug 6148 blocks 4 bugs:

•    6148: WebKit doesn't shape characters (like Arabic) across style changes [NEW; assigned to mmaxfield]
  •    229361: font-feature-settings inline boundaries break contextual shaping [NEW; assigned to webkit-unassigned]
  •    47213: CSS 2.1 failure: bidi-first-letter-001 [RESOLVED DUPLICATE; assigned to webkit-unassigned]
    •    47141: CSS 2.1 test suite failures [NEW; assigned to webkit-unassigned]
      •    90626: CSS 2.1 failure: vertical-align-boxes-001 fails [RESOLVED FIXED; assigned to robert]