Fix double-completion in a case where a PresentHistoryDetailed didn't show up. If DxgKrnl Present thought that it should be redirected, but we didn't get the events to track it, consider it dropped.
Fix double-completion in a case where a PresentHistoryDetailed didn't show up. If DxgKrnl Present thought that it should be redirected, but we didn't get the events to track it, consider it dropped.

anyeung/PresentMon,GameTechDev/PresentMon,jenatali/PresentMon,GameTechDev/PresentMon,GameTechDev/PresentMon,GameTechDev/PresentMon,jessicc1/PresentMon