Chris Peterson 8b5365a15b Bug 1624786 - Replace MOZ_MUST_USE with [[nodiscard]] in widget/headless. r=bdahl
Also move MOZ_MUST_USE before function declarations' specifiers and return type. While clang and gcc's __attribute__((warn_unused_result)) can appear before, between, or after function specifiers and return types, the [[nodiscard]] attribute must precede the function specifiers.

Differential Revision: https://phabricator.services.mozilla.com/D68150

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extra : moz-landing-system : lando
2020-04-08 16:41:43 +00:00
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