Thanks for the info. It's clear now that my methodology for finding the platform specific try-bots for blink unit tests is not aligned with the actual set of platform specific try bots that run blink unit tests.
It seems worth explaining my use cases. I essentially only make changes in blink code, and frequently in places that may be sensitive to particular OS versions, such as fonts metrics. I always thought I could just use "blink" as a filter in Gerrit for the trybot selection and just select all the blink-rel bots. Then I discovered that these do not run unit tests and hence this mail thread and a bug report.
Am I right in understanding that I could get the same result by filtering on *chromium*rel_ng to see bots for the various platforms? Is the naming scheme consistent?
Stephen.