QA/Platform/Graphics/Changes

The following tracks changes to Gecko's graphics code that have high potential to introduce regressions.

Gecko 48

Skia Content on Mac OS X

Description:	Change graphics back-end on Mac OS X from CoreGraphics to Skia
Contact:	Mason Chang (Dev), Anthony Hughes (QA)
Tracking Bug:	bug 1207332
Mailing List:	mozilla.dev.platform
How to Help:	...description of tests to run...
Issues:	If you experience rendering artifacts while browsing on Mac OS X, change gfx.content.azure.backends to cg in about:config and retest to confirm the issue is caused by Skia. If confirmed, please file a bug report which blocks bug 1207332. Full Query Summary Status Resolution RESOLVED WORKSFORME RESOLVED WORKSFORME RESOLVED FIXED RESOLVED FIXED RESOLVED DUPLICATE RESOLVED FIXED RESOLVED FIXED RESOLVED WONTFIX VERIFIED FIXED RESOLVED FIXED NEW RESOLVED FIXED 12 Total; 1 Open (8.33%); 10 Resolved (83.33%); 1 Verified (8.33%);

Asynchronous Scrollbar Dragging

Description:	Enable asynchronous scrolling when dragging the scrollbar
Contact:	Benoit Girard (Dev), Anthony Hughes (QA)
Tracking Bug:	bug 1211610
Mailing List:	mozilla.dev.platform
How to Help:	...description of tests to run... 'apz.drag.enabled' to true and restart. test page: http://people.mozilla.org/~bgirard/scroll_no_paint.html (scrolling on this page is slow in FF because it hits a performance bugs in layer construction code. However with APZ the scrolling is smooth and a bit checkerboard-y instead. If you have 'layers.acceleration.draw-fps' set you should notice the left most FPS counter at 60 FPS while the middle counter will be much lower. This is APZ handling the scroll.)
Issues:	If you experience rendering artifacts while browsing on Mac OS X, change gfx.content.azure.backends to cg in about:config and retest to confirm the issue is caused by Skia. If confirmed, please file a bug report which blocks bug 1211610. Full Query Summary Status Resolution RESOLVED FIXED RESOLVED FIXED RESOLVED FIXED RESOLVED FIXED RESOLVED FIXED RESOLVED FIXED VERIFIED FIXED VERIFIED FIXED RESOLVED DUPLICATE RESOLVED WORKSFORME RESOLVED WORKSFORME NEW RESOLVED WORKSFORME RESOLVED DUPLICATE RESOLVED FIXED VERIFIED FIXED VERIFIED FIXED VERIFIED FIXED RESOLVED FIXED RESOLVED FIXED RESOLVED INVALID RESOLVED FIXED RESOLVED WORKSFORME RESOLVED FIXED VERIFIED FIXED RESOLVED WORKSFORME VERIFIED FIXED RESOLVED WORKSFORME RESOLVED DUPLICATE RESOLVED FIXED RESOLVED FIXED VERIFIED FIXED VERIFIED FIXED VERIFIED FIXED VERIFIED FIXED RESOLVED FIXED RESOLVED WORKSFORME RESOLVED DUPLICATE RESOLVED FIXED 39 Total; 1 Open (2.56%); 27 Resolved (69.23%); 11 Verified (28.21%);

Bug ID, Mailing list link, summary of issue, target milestone, testing/o&d tasks