Google is grappling with an ongoing antitrust case in Europe over its online search business, and if its rivals have anything to do with it, that might extend into Google’s power in the mobile sphere, too. Figures out today from Kantar Worldpanel may not help Google’s case very much. The analysts say that in the last three months, Google-powered smartphones, running Android, accounted for more than 70% of sales in the region’s five biggest markets of Great Britain, Germany, France, Italy and Spain — part of a wider, global trend of Android continuing to consolidate its leadership position in smartphones. And the secondary story here is that much of this success is being led by Samsung, which now accounts for nearly half of all smartphones sold in the region.