Bug 1444434 - Free the Gecko profiler screenshots structures in the WebRender renderer when profiling stops r=kvark
Bug 1444434 - Free the Gecko profiler screenshots structures in the WebRender renderer when profiling stops r=kvark

Differential Revision: https://phabricator.services.mozilla.com/D23964

[wrupdater] From https://hg.mozilla.org/mozilla-central/rev/13c0d857bf3c7cb5b21f25e2c35e1f2f3a57a4e2

servo/webrender,servo/webrender,servo/webrender,servo/webrender,servo/webrender,servo/webrender