While the buzz around did hint that 'OK Google' was being deprecated from Chrome OS, XDA has now discovered a new commit to the Chromium Gerrit page that hits that it will be added as feature.
The new commit on the Chromium Gerrit page clearly implies that Google Assistant is coming to Chrome OS. According to XDA, the commit reads, "add Google Assistant settings to the settings UI." and seems to confirm things when it also says, "launch an Intent when the 'Google Assistant Settings' button is tapped."
It is clear now that the voice assistant will arrive on Chrome OS, keeping in mind the above entries, but there's more.
There are some more files that surfaced on the repository, which hint at Google Assistant arriving on Chrome OS. These would include, google_assistant_handler.cc and another google_assistant_page.html, those which prove that work is being done on getting Assistant to Chrome OS.
For now there's no confirmation on any date nor a timeline available. XDA points out that Google could handle the virtual assistant in the same way like it does with Android applications.
Google CEO and Alphabet board member Sundar Pichai, told VentureBeat that Google Assistant has already made it to over 100 million devices since its launch last year.