Bryce Seager van Dyk a37965e298 Bug 1586347 - Have BrowserChild internally take care of caching logic when checking if windows support protected media. r=dminor,rhunt
Currently when checking if a window supports protected media it's up to the
caller interacting with a BrowserChild to check if a response is already
cached, to perform the check if needed, and to then set the cached response if a
call was made. This patch moves that logic internal to Browser child so that
callers need to only worry about interacting with a single function.

Differential Revision: https://phabricator.services.mozilla.com/D48585

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extra : moz-landing-system : lando
2019-10-14 19:10:39 +00:00
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