Tl;Dr It was a team effort. If you want one name, Ben Goodger was the lead and wrote the original design doc.
As Philip mentions, Chrome is based on many open source projects going back about a decade. Hundreds of engineers worked on those FOSS packages.
The Google story began around March 1, 2006 when someone came up with the idea for an April Fools joke that Google was making a browser. That unknown person probably deserves an honorable mention. because they spawned the more serious discussion at Google.
From there the Pm team discussed briefly whether this should be taken seriously. They decided it was a joke and too much of a distraction.
On March 27, the AFJ was announced to the company.
It then went to Product Council, which came back positive around April 15. It was now an official Google project.
Ben was the main tech lead and wrote the design doc. (Ben also is who helped setup the Linux build for Chromebook.)
On the management side, Brian Racowski was the main point person for the project, and I'm sure he also did a significant amount of work to get the ball rolling on the project.
Because Chrome was based on open source, internal to Google we had prototype quality builds almost from day 1. June 2006 was the first time I saw rendered html.
More than 10,000 open source developers have contributed code to the Chromium project since September 1st 2008, when it was announced to the public.
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