Fill unpainted rects with the background color.
Created attachment 79938 [details] Patch
Comment on attachment 79938 [details] Patch View in context: https://bugs.webkit.org/attachment.cgi?id=79938&action=review > Source/WebKit2/UIProcess/API/mac/WKView.mm:1227 > +static void drawPageBackground(CGContextRef context, WebPageProxy *page, const IntRect& rect) * on the wrong side for WebPageProxy.
Committed r76533: <http://trac.webkit.org/changeset/76533>