[Webkit-unassigned] [Bug 134248] Only flush layers when the exposed rect actually changes

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=134248





--- Comment #2 from Simon Fraser (smfr) <simon.fraser at apple.com>  2014-06-24 08:56:57 PST ---
(From update of attachment 233698)
View in context: https://bugs.webkit.org/attachment.cgi?id=233698&action=review

> Source/WebKit2/WebProcess/WebPage/mac/RemoteLayerTreeDrawingArea.mm:206
> +    auto rect = enclosingIntRect(exposedContentRect);
> +    if (frameView->exposedContentRect() == rect)
> +        return;

This makes assumptions about how FrameView does rounding. Maybe setExposedContentRect() should instead return a bool?

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