Bug 975931. Part 1: Add nsDOMWindowUtils API to add an extra scroll offset in the AsyncPanZoomController when compositing. r=kats

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Bug 975931. Part 2: Update README with complete documentation of all attributes, and put the attribute name in the section heading. r=dbaron

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Bug 975931. Part 3: When the reftest-async-scroll attribute is present, allow reftest-displayport to be set on any element. r=tnikkel

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Bug 975931. Part 4: Support reftest-async-scroll attributes. r=dbaron

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Bug 975931. Part 5: Propagate scrolling behavior for non-app non-browser remote <iframe>s. r=khuey

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Bug 975931. Part 7: Enable APZC in reftests. r=dbaron

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Bug 975931. Part 8: When we reduce a layer's shadow-visible-region due to opaque covering content, restore it after compositing to ensure it's correct if the opaque content isn't there next time. r=mattwoodrow

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extra : rebase_source : 72119bd17b0606af70b4f6dbf05cea631aa71e9a
Bug 975931. Part 9: Add basic reftests for async scrolling. r=tnikkel

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Bug 975931. Part 2: Add more async scrolling tests. r=kats

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extra : rebase_source : eb86d75c6c6d2fffda4b32f1407f158c7a48383a
Bug 975931. Part 10: Refactor nsDOMWindowUtils to use a shared GetDocument method. r=matspal

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extra : rebase_source : 171cd80958a92efcf16ebd249c73f46dbdedb012
Bug 975931. Part 11: Make nsDOMWindowUtils::SetDisplayPortForElement take a priority parameter, and set that parameter to 1 in reftests to override automatic displayport selection. r=kats

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