This is pretty standard terminology for marketshare. "Apple takes smartphone market share from Android thanks to strong iPhone sales" [1] and similar. The idea is that the marketshare was one place, and another company was able to grab it. Maybe through a better product, maybe through cheaper pricing, maybe through a big ad campaign, maybe through mismanagement at the first company, maybe through changes in trends and styles, lots of possible reasons. Whether they "earned" it or not in some moral sense isn't usually particularly decidable or relevant.

[1] http://www.geekwire.com/2015/apple-takes-smartphone-market-s...