[Webkit-unassigned] [Bug 33408] Add flag IGNORE_FIXED_BACKGROUNDS (disabled by default) to ignore fixed background images and accelerate web page scrolling on low-powered/mobile devices

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=33408


Simon Fraser (smfr) <simon.fraser at apple.com> changed:

           What    |Removed                     |Added
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  Attachment #46176|review?                     |review-
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--- Comment #4 from Simon Fraser (smfr) <simon.fraser at apple.com>  2010-01-13 11:09:23 PST ---
(From update of attachment 46176)
This seems like the wrong approach. Why not just change CSSStyleSelector to
override FixedBackgroundAttachment with ScrollBackgroundAttachment?

Also, having a whole new build setting, IGNORE_FIXED_BACKGROUNDS, for this
seems like overkill. What if you find some other CSS property that you'd like
to ignore to get fast scrolling? It seems like it should be
ALLOW_FAST_SCROLLING or something that indicates that this is for a
limited-capacity mobile device.

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