Toshihito Kikuchi 18aab300b5 Bug 1576697 - Use LauncherResult in WinHeaderOnlyUtils.h instead of WindowsErrorResult. r=aklotz
`WindowsErrorResult` is a class to hold either a value or a Windows error
code based on the `Result` template.  We also have `LauncherResult` for the
same purpose, which was introduced as a part of the launcher process feature
afterward.  The difference is `LauncherResult` holds a filename and line
number along with an error code.

This patch integrates LauncherResult.h into WinHeaderOnlyUtils.h so that we
can use `LauncherResult` more broadly.

Differential Revision: https://phabricator.services.mozilla.com/D44512

--HG--
extra : moz-landing-system : lando
2019-09-07 18:17:45 +00:00
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