Hiroshi Lockheimer, SVP Android, Chrome OS and Chromecast, writing on the Google Chrome blog:
Over the last few days, there’s been some confusion about the future of Chrome OS and Chromebooks based on speculation that Chrome OS will be folded into Android. While we’ve been working on ways to bring together the best of both operating systems, there’s no plan to phase out Chrome OS.
Notice the dancing around in that paragraph. Either the WSJ got it wrong, over-stating the work to “bring together” the two OSes, or this is happening, and somehow “Chrome OS” will stick around.