* Add GetApplicationNameForProtocol.
* Fix Windows implementation.
* Fix up test.
* Add documentation.
* Implement for real on Linux using xdg-mime.
Also ensure we allow blocking calls here to avoid errant DCHECKing.
* Improve docs for Linux.
* Clean up tests.
* Add a note about not relying on the precise format.
* Update docs/api/app.md
Co-Authored-By: Shelley Vohr <codebytere@github.com>
* Remove needless `done()`s from tests.
* Use vector list initialization.
* Add a simple test for isDefaultProtocolClient.
* Remove unneeded include and skip a test on Linux CI.
* We no longer differentiate between CI and non-CI test runs.