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

> On Thu, Nov 15, 2012 at 2:16 PM, Chris Evans <cev...@chromium.org> wrote:
> On Thu, Nov 15, 2012 at 11:49 AM, Geoffrey Garen <gga...@apple.com> wrote:
> On Nov 14, 2012, at 3:19 PM, Chris Evans <cev...@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.

Cheers,
Maciej


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