HTC and Google have come full circle twice since the original HTC Dream, which released on T-Mobile as the T-Mobile G1. Then a few years later with the release of the Google Nexus One, yet another phone is made by HTC for Google. And now, with the Nexus lineup seemingly discontinued, the (HTC-made, as well) Google Pixel takes its rightful place as Google's own flagship offering.
Source: http://www.gsmarena.com/google_pixel-review-1518.php