These missing #include's caused my non-unified compilation to fail.
Created attachment 449268 [details] missing headers patch
WebCore/css/calc/CSSCalcOperationNode.cpp and ebCore/css/calc/CSSCalcPrimitiveValueNode.cpp weren't able to see the definition of LOG_WITH_STREAM() WebCore/page/EventHandler.cpp wasn't able to recognize SetForScope() WebKit/WebProcess/WebPage/CoordinatedGraphics/LayerTreeHost.h wasn't able to recognize WebCore::FloatPoint ... but apparently only #if PLATFORM(GTK) ... so we should probably update the patch. It also wasn't able to find #include <WebCore/CoordinatedGraphicsLayer.h>, so I guess that needed to be wrapped in that additional #if USE(COORDINATED_GRAPHICS) WebKit/WebProcess/WebPage/CoordinatedGraphics/DrawingAreaCoordinatedGraphics.h didn't recognize adjustTransientZoom() and commitTransientZoom()
Please include a ChangeLog and make sure it passes EWS (patch must apply to trunk). Then you can separately submit a patch for the stable branch (which of course doesn't need to pass EWS).
*** This bug has been marked as a duplicate of bug 235444 ***