[webkit-dev] RenderArena: Teaching an old dog new tricks

Maciej Stachowiak mjs at apple.com
Thu Nov 15 15:06:21 PST 2012

On Nov 15, 2012, at 2:59 PM, Ryosuke Niwa <rniwa at webkit.org> wrote:

> On Thu, Nov 15, 2012 at 2:16 PM, Chris Evans <cevans at chromium.org> wrote:
> On Thu, Nov 15, 2012 at 11:49 AM, Geoffrey Garen <ggaren at apple.com> wrote:
> On Nov 14, 2012, at 3:19 PM, Chris Evans <cevans at chromium.org> wrote:
>> A first step might be to make it a platform define. For the Chromium platform we'd leave the define "on" -- there are some nice security properties we get from having the RenderObjects in their own spot. I'm happy to go in to more details if you want, but it's similar (although not identical) to the blog post linked by Brendan regarding Firefox.
>> Not all WebKit consumers need weight things the same way as the Chromium port of course, but at least for us, the security win outweighs any quirks of RenderArena.
> r-
> Don't do this.
> Ok, no platform define for RenderArena. There's also an implicit r- on removing the thing, though, as we'd regress security(!!) and performance. Seems we're stuck with the thing.
> While I don’t want to further agitate the issue or go off on a tangent, and agree that we must address the security aspect before getting rid of RenderArena, only WebKit reviewers can r- patches written by other contributors. You’re not even supposed to set r- on your own patches. See http://www.webkit.org/coding/commit-review-policy.html

I think Chris merely meant that removing RenderArena without fixing those problems would appear to violate the project goals, and therefore a responsible reviewer would likely r- it. I don't think he intended to literally r- a patch.


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