I'm not sure that wording is accurate. Google is leveraging the brick-and-mortar companies to compete with Amazon and collect more data about its users. Arguably some of the most valuable data they could get; spending and buying habits.
I doubt Target is thrilled that Google is looking to inject themselves as a middleman between them and their customers. Target has historically leveraged customer buying habits pretty aggressively [1]. I'd be surprised if their execs aren't frantically trying to figure out how to keep Google from "helping" them compete with Amazon.
[1] http://www.forbes.com/sites/kashmirhill/2012/02/16/how-targe...