Robert O'Callahan 2bbcb226e2 Bug 754556. Ensure that setting scroll positions in CSS pixels doesn't unexpectedly move the scroll position, especially not in the wrong direction. r=matspal ... If the current scroll position is fractional, e.g. y=N.4 CSS pixels, and something tries to read the position in CSS pixels and scroll to that position (e.g. calling window.scrollTo(0, rootElem.scrollTop), or equivalently window.scrollBy(0, 0)), it can actually end up scrolling backwards. So create a new method nsIScrollableFrame::ScrollToCSSPixels which ensures that scrolling to a CSS pixel offset tries to preserve the current fractional scroll position if that's possible, and if that's not possible at least does not allow the scroll position to move in the wrong direction.		2012-05-15 17:58:09 +12:00
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crashtests	Bug 754759 [leave open] - Mark 752226-1.html or 752226-2.html as asserting randomly [r=Ms2ger]	2012-05-14 08:30:20 -07:00
public	Bug 754151 - add macros for basic wrappercached cycle collected classes. r=smaug	2012-05-14 08:24:03 -07:00
src	Bug 754556. Ensure that setting scroll positions in CSS pixels doesn't unexpectedly move the scroll position, especially not in the wrong direction. r=matspal	2012-05-15 17:58:09 +12:00
test	Bug 752226 - Tests. r=evilpie	2012-05-11 17:46:54 +02:00
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