While Google does not provide an official "portable" version, the community-supported Google Chrome Portable by PortableApps.com offers a way to run various Chrome channels, including Canary, from a USB drive or cloud folder. Key Features of Chrome Canary Chrome Canary for Developers - Paul Irish
is the answer. It gives you a hands-on look at tomorrow's internet, all from a single folder or USB drive. What is Chrome Canary? chrome canary portable link
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This is the most reputable source for portable software. They provide a "PAF" (PortableApps Format) version of Chrome Canary that is well-maintained and easy to update. While Google does not provide an official "portable"