Andrey Lushnikov bcb4944f1b
devops: auto-detect platform in //browser_patches/chromium/build.sh (#3772)
If there's no platform specified for the chromium build, we should
detect the host platform.

This will make it pleasant to verify Chromium rolls locally.
Assuming there's a `CR` env variable pointing to the local chromium,
rolling would look like this:

- bump a revision in `//browser_patches/chromium/BUILD_NUMBER`
- run `//browser_patches/chromium/build.sh`
- run tests with pulled chromium: `CRPATH=$CR npm run ctest`
2020-09-04 04:23:13 -07:00
..