[Webkit-unassigned] [Bug 110146] Rename AncestorChainWalker

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=110146





--- Comment #8 from Hayato Ito <hayato at chromium.org>  2013-02-18 18:58:29 PST ---
Let me add one more history.
Before ComposedShadowTreeWalker was introduced, there was a 'Reified DOM Tree traversal'.
http://trac.webkit.org/changeset/112055

This is function style APIs. All public APIs are just static functions.

ComposedShadowTreeWalker was introduced, deprecating ReifiedTreeTraversal.
The reasons:
  - We need to parameterize Walker class. It might be good to have a parameter in its constructor.
  - I'd like to optimize the performance of walker without affecting the usage in caller side.

I think NodeTraversal, which was introduced recently, might be wrapper APIs for common use cases for walker.
If we can apply NodeTraversal, we should use it rather than using Walker directly.

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