[Webkit-unassigned] [Bug 105919] Stylesheets that don't match current viewport etc. are no longer deferred

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=105919





--- Comment #1 from Yoav Weiss <yoav at yoav.ws>  2013-01-06 08:03:31 PST ---
Created an attachment (id=181459)
 --> (https://bugs.webkit.org/attachment.cgi?id=181459&action=review)
Re-enabling the ResourceLoadScheduler

This issue started in the disabling of the ResourceLoadScheduler for Chromium at the git commit 46e22591a4adb6bb42530b2f52e4517cd3b226bf.
This patch reverses part of that commit.
The reasoning for disabling the renderer's load scheduler is explained at https://insouciant.org/tech/throttling-subresources-before-first-paint/ and in short it is destined to move resource scheduling out of the rendering engine and into the browser. Since Chrome's resource scheduling is not yet in place (at least as I can tell), this results in obvious performance regressions, especially when it comes to external CSS files that are not necessary for first paint.

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