Bug 1426793 - Run browser_startup_flicker.js on DevEdition builds. r=florian

browser/base/content/test/performance/browser.ini

@@ -19,7 +19,7 @@ skip-if = devedition # We ship startupRecorder.js on DevEdition, but this test s
 [browser_startup_content.js]
 skip-if = !e10s
 [browser_startup_flicker.js]
-run-if = debug || nightly_build # Requires startuprecorder.js, which is only available on debug & trunk
+run-if = debug || devedition || nightly_build # Requires startupRecorder.js, which isn't shipped everywhere by default
 [browser_tabclose_grow_reflows.js]
 [browser_tabclose_reflows.js]
 [browser_tabopen_reflows.js]