Bug 1711786 - Fix NumPictureCacheInvalidated not showing up. r=nical
Bug 1711786 - Fix NumPictureCacheInvalidated not showing up. r=nical

self.profiler doesn't have the data set in it yet so
we need to use self.profile.

Differential Revision: https://phabricator.services.mozilla.com/D115412

[ghsync] From https://hg.mozilla.org/mozilla-central/rev/d80f796241019eae85a70b5a986b8aa14861d946

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