Enable leakless for killing processes. Maybe it'll prevent issues with
the jenkins stage stalling.
Unify some of the code.
Set the browser tests non-parallel again, it might be causing some of
the issues.
Change-Id: Idb123bff3640e8adab5db0917ee774f0cf7e2568
* Remove "enable-logging", because it ends up spawning consoles on
Windows.
* Remove "disable-gpu", if we have a GPU, then let's use it.
* Create custom client, so we can attach logging to CDP.
* Ignore potential context.Canceled.
* Fix onboarding wizard test for new objects browser.
* Return an error on a context cancellation.
* Wire all loggers to planet.
Change-Id: I67eb138ba31252f55ac5b383679d033bcf71f1b2